2ACRJZS-300LEnvironmental variable collector for logistics

ZillionSource Technologies (Shanghai) Co., Ltd. Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China -------------------------------------------------------------------------------- (FCC ID：2ACRJZS-300L) Statement DATE: 2022-03-25 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby declare that the WiFi function of this product is only has receiving mode, not transmitting mode. The WiFi function of the product is always in the state of receiving signals. The product receives and collects Beacon frames sent from the Access Point, does no registration or handshaking with the Access Point. The information we need is contained in the Beacon frame. Sincerely, ZillionSource Technologies (Shanghai) Co., Ltd. ------------------------------- (Peter Huang) (Hardware Architect)

ZillionSource Technologies (Shanghai) Co., Ltd. Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022-03-25 SUBJECT: FCC Application for FCC ID: 2ACRJZS-300L To Whom It May Concern: I, the undersigned, hereby states this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion and receivers that operate in the range between 30 and 960 MHz of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States. According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Regards, ZillionSource Technologies (Shanghai) Co., Ltd. ------------------------------- (Peter Huang) (Hardware Architect)

ZillionSource Technologies (Shanghai) Co., Ltd. Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China -------------------------------------------------------------------------------- (FCC ID：2ACRJZS-300L) POWER OF ATTORNEY DATE: 2022-03-25 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, ZillionSource Technologies (Shanghai) Co., Ltd. are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, ZillionSource Technologies (Shanghai) Co., Ltd. ------------------------------- (Peter Huang) (Hardware Architect)

ZillionSource Technologies (Shanghai) Co., Ltd. Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China Product Name: Environmental variable collector for logistics FCC ID: 2ACRJZS-300L Model No.: ZS-300L, ZS-300 S, ZS-300 X, ZS-300 E, ZS-300 C, ZS-300, ZS-300 W Model Declaration Letter Dear Regulatory Authority, Model(s): ZS-300 S, ZS-300 X, ZS-300 E, ZS-300 C, ZS-300, ZS-300 W are same to the model ZS-300L, these models are same PCB Layout, Schematics, BOM. Only for different model name and appearances for different market require. Sincerely yours, Signature Peter Huang/Hardware Architect Date: 2022-03-25

ZillionSource Technologies (Shanghai) Co., Ltd. Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China --------------------------------------------------------------------------------------------------------------------- Date: 2022-03-25 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ACRJZS-300L Confidentiality Request To whom it may concern, Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of the information accompanying this application as outlined below: ☒ Block Diagram ☒ Tune-Up Information ☒ Operational Description ☐ Security Information ☒ Schematics ☐ Software Defined Radio (SDR) Information ☒ Parts List The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, ZillionSource Technologies (Shanghai) Co., Ltd. ------------------------------- (Peter Huang) (Hardware Architect)

Reference No.: WTX21X12150432W-1/2 Page 2 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX21X12150432W-1/2 Page 3 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX21X12150432W-1/2 Page 4 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6 Reference No.: WTX21X12150432W-1/2 Page 5 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 7 EUT View 8

Reference No.: WTX21X12150432W-1/2 Page 1 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2ACRJZS-300L Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Reference No.: WTX21X12150432W-1/2 Page 9 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 6 Solder Board-Component View 7 Reference No.: WTX21X12150432W-1/2 Page 10 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 8 Solder Board-Component View 9 Reference No.: WTX21X12150432W-1/2 Page 11 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 10 Antenna View 1 Reference No.: WTX21X12150432W-1/2 Page 12 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View 2

Reference No.: WTX21X12150432W-1/2 Page 6 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX21X12150432W-1/2 Page 7 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Solder Board-Component View 3 Reference No.: WTX21X12150432W-1/2 Page 8 of 15 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 4 Solder Board-Component View 5

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 62 TEST REPORT Reference No. .................... : WTX21X12150432W FCC ID ................................ : 2ACRJZS-300L Applicant ........................... : ZillionSource Technologies (Shanghai) Co., Ltd. Address.............................. : Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China Product Name ................... : Environmental variable collector for logistics Model No.. .......................... : ZS-300L Standards .......................... : FCC Part 2.1093 IEEE Std C95.1: 2019 IEEE Std C95.3: 2002 + Rev. 2008 IEEE 62209-1528: 2020 Date of Receipt sample .... : Dec. 29, 2021 Date of Test........................ : Dec. 29, 2021 to Feb. 28, 2022 Date of Issue ..................... : Feb. 28, 2022 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Reviewed By: Approved & Authorized By: Jack Sun / Project Engineer Jason Su / RF Manager Silin Chen / Manager Reference No.: WTX21X12150432W Page 2 of 62 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn TABLE OF CONTENTS 1. General Information ...................................................................................................................................................4 1.1 Product Description for Equipment Under Test (EUT) .........................................................................................4 1.2 Test Standards ....................................................................................................................................................6 1.3 Test Methodology ................................................................................................................................................6 1.4 Test Facility .........................................................................................................................................................6 2. Summary of Test Results ..........................................................................................................................................7 3. Specific Absorption Rate (SAR) ................................................................................................................................8 3.1 Introduction ..........................................................................................................................................................8 3.2 SAR Definition .....................................................................................................................................................8 4. SAR Measurement System ........................................................................................................................................9 4.1 The Measurement System ..................................................................................................................................9 4.2 Probe ...................................................................................................................................................................9 4.3 Probe Calibration Process ................................................................................................................................. 11 4.4 Phantom ............................................................................................................................................................ 12 4.5 Device Holder .................................................................................................................................................... 12 4.6 Test Equipment List ........................................................................................................................................... 13 5. Tissue Simulating Liquids ....................................................................................................................................... 14 5.1 Composition of Tissue Simulating Liquid ........................................................................................................... 14 5.2 Tissue Dielectric Parameters for Head and Body Phantoms ............................................................................. 15 5.3 Tissue Calibration Result ................................................................................................................................... 16 6. SAR Measurement Evaluation ................................................................................................................................ 17 6.1 Purpose of System Performance Check ............................................................................................................ 17 6.2 System Setup .................................................................................................................................................... 17 6.3 Validation Results .............................................................................................................................................. 19 7. EUT Testing Position ............................................................................................................................................... 20 7.1 Body Position .................................................................................................................................................... 20 7.2 EUT Antenna Position ............…

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Page: 1/10 Ref : ACR.197.12.21.BES.B Cancel and replace the report ACR.197.12.21.BES.A WALTEK TESTING GROUP (SHENZHEN) CO., LTD 1/F., ROOM 101, BUILDING 1, HONGWEI INDUSTRIAL PARK, LIUXIAN 2ND ROAD, BLOCK 70 BAO’AN DISTRICT, SHENZHEN, GUANGDONG , CHINA MVG COMOSAR DOSIMETRIC E-FIELD PROBE SERIAL NO.: SN 18/21 EPGO356 Calibrated at MVG Z.I. de la pointe du diable Technopôle Brest Iroise – 295 avenue Alexis de Rochon 29280 PLOUZANE - FRANCE Calibration date: 07/16/2021 Accreditations #2-6789 Scope available on www.cofrac.fr Summary: This document presents the method and results from an accredited COMOSAR E-Field Probe calibration performed at MVG, using the CALIPROBE test bench, for use with a MVG COMOSAR system only. The test results covered by accreditation are traceable to the International System of Units (SI). COMOSAR E-Field Probe Calibration Report COMOSAR E-FIELD PROBE CALIBRATION REPORT Ref: ACR.197.12.21.BES.B Page: 2/10 Template_ACR.DDD.N.YY.MVGB.ISSUE_COMOSAR Probe vI This document shall not be reproduced, except in full or in part, without the written approval of MVG. The information contained herein is to be used only for the purpose for which it is submitted and is not to be released in whole or part without written approval of MVG. Name Function Date Signature Prepared by : Jérôme Le Gall Measurement Responsible 7/16/2021 Checked by : Jérôme Luc Technical Manager 7/16/2021 Approved by : Yann Toutain Laboratory Director 8/23/2021 Customer Name Distribution : Waltek Testing Group (Shenzhen) Co., Ltd Issue Name Date Modifications A Jérôme Luc 7/16/2021 Initial release B Jérôme Luc 8/16/2021 Change customer name/address COMOSAR E-FIELD PROBE CALIBRATION REPORT Ref: ACR.197.12.21.BES.B Page: 3/10 Template_ACR.DDD.N.YY.MVGB.ISSUE_COMOSAR Probe vI This document shall not be reproduced, except in full or in part, without the written approval of MVG. The information contained herein is to be used only for the purpose for which it is submitted and is not to be released in whole or part without written approval of MVG. TABLE OF CONTENTS 1 Device Under Test ..................................................................................................... 4 2 Product Description ................................................................................................... 4 2.1 General Information _______________________________________________________ 4 3 Measurement Method ................................................................................................ 4 3.1 Linearity ________________________________________________________________ 4 3.2 Sensitivity _______________________________________________________________ 5 3.3 Lower Detection Limit _____________________________________________________ 5 3.4 Isotropy _________________________________________________________________ 5 3.1 Boundary Effect __________________________________________________________ 5 4 Measurement Uncertainty .......................................................................................... 6 5 Calibration Measurement Results .............................................................................. 6 5.1 Sensitivity in air __________________________________________________________ 6 5.2 Linearity ________________________________________________________________ 7 5.3 Sensitivity in liquid ________________________________________________________ 8 5.4 Isotropy _________________________________________________________________ 9 6 List of Equipment .................................................................................................... 10 COMOSAR E-FIELD PROBE CALIBRATION REPORT Ref: ACR.197.12.21.BES.B Page: 4/10 Template_ACR.DDD.N.YY.MVGB.ISSUE_COMOSAR Probe vI This document shall not be reproduced, except in full or in part, without the written approval of MVG. The information contained herein is to be used only for the purpose for which it is submitted and is not to be released in whole or part without written approval of MVG. 1 DEVICE UNDER TEST Device Under Test Device Type COMOSAR DOSIMETRIC E FIELD PROBE Manufacturer MVG Model SSE2 Serial Number SN 18/21 EPGO356 Product Condition (new / used) New Frequency Range of Probe 0.15 GHz-6GHz Resistance of Three Dipoles at Connector Dipole 1: R1=0.221 M Dipole 2: R2=0.197 M Dipole 3: R3=0.195 M 2 PRODUCT DESCRIPTION 2.1 GENERAL INFORMATION MVG’s COMOSAR E field Probes are built in accordance to the IEEE 1528, FCC KDB865664 D01, CENELEC EN62209 and CEI/IEC 62209 standards. Figure 1 – MVG COMOSAR Dosimetric E field Dipole Probe Length 330 mm Length of Individual Dipoles 2 mm Maximum external diameter 8 mm Probe Tip External Diameter 2.5 mm Distance between dipoles / probe extremity 1 mm 3 MEASUREMENT METHOD The IEEE 1528, FCC KDB865664 D01, CENELEC EN62209 and CEI/IEC 62209 standards provide recommended practices for the probe calibrations, including the performance characteristics of interest and methods by which to assess their affect. All calibrations / measurements performed meet the fore mentioned standards. 3.1 LINEARITY The evaluation of the linearity was done in free space using the waveguide, performing a power sweep to cover the SAR range 0.01W/kg to 100W/kg. COMOSAR E-FIELD PROBE CALIBRATION REPORT Ref: ACR.197.12.21.BES.B Page: 5/10 Template_ACR.DDD.N.YY.MVGB.ISSUE_COMOSAR Probe vI This document shall not be reproduced, except in full or in part, without the written approval of MVG. The information contained herein is to be used only for the purpose for which it is submitted and is not to be released in whole or part without written approval of MVG. 3.2 SENSITIVITY The sensitivity factors of the three dipoles were determined using a two step calibration method (air and tissue simulating liquid) using waveguides as outlined in the standards. 3.3 LOWER DETECTION LIMIT The lower detection limit was assessed using the same measurement set up as used for the linearity measurement. The required lower detection lim…

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Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 27 TEST REPORT Reference No. .................... : WTX21X12150432W-2 FCC ID ................................ : 2ACRJZS-300L Applicant ........................... : ZillionSource Technologies (Shanghai) Co., Ltd. Address.............................. : Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China Product Name ................... : Environmental variable collector for logistics Test Model. ........................ : ZS-300L Standards .......................... : FCC Part 22,FCC Part 24E Date of Receipt sample .... : Dec. 29, 2021 Date of Test........................ : Dec. 29, 2021 to Feb. 24, 2022 Date of Issue ..................... : Feb. 24, 2022 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Tested by: Reviewed By: Approved & Authorized By: Mike Shi / Project Engineer Jason Su / RF Manager Silin Chen / Manager Reference No.: WTX21X12150432W-2 Page 2 of 27 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................4 1.2 TEST STANDARDS ...................................................................................................................................................6 1.3 TEST METHODOLOGY .............................................................................................................................................6 1.4 TEST FACILITY .......................................................................................................................................................6 1.5 EUT SETUP AND TEST MODE .................................................................................................................................7 1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................8 1.7 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................9 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 11 3. RF OUTPUT POWER ............................................................................................................................................ 12 3.1 STANDARD APPLICABLE ....................................................................................................................................... 12 3.2 TEST PROCEDURE ................................................................................................................................................. 12 3.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 12 4. PEAK-TO-AVERAGE RATIO (PAR) OF TRANSMITTER ............................................................................. 15 4.1 STANDARD APPLICABLE ....................................................................................................................................... 15 4.2 TEST PROCEDURE ................................................................................................................................................. 15 4.3 SUMMARY OF TEST RESULTS ............................................................................................................................... 15 5. EMISSION BANDWIDTH ..................................................................................................................................... 16 5.1 STANDARD APPLICABLE ....................................................................................................................................... 16 5.2 TEST PROCEDURE ................................................................................................................................................. 16 5.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 16 6. OUT OF BAND EMISSIONS AT ANTENNA TERMINAL ............................................................................... 17 6.1 STANDARD APPLICABLE ....................................................................................................................................... 17 6.2 TEST PROCEDURE ................................................................................................................................................. 17 6.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 18 7. SPURIOUS RADIATED EMISSIONS .................................................................................................................. 19 7.1 STANDARD APPLICABLE ....................................................................................................................................... 19 7.2 TEST PROCEDURE ........................................................................................................................................…

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Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 53 TEST REPORT Reference No. .................... : WTX21X12150432W-1 FCC ID ................................ : 2ACRJZS-300L Applicant ........................... : ZillionSource Technologies (Shanghai) Co., Ltd. Address.............................. : Room 2207a, No. 28, Maji Road, Shanghai Free Trade Zone, Shanghai, China Product Name ................... : Environmental variable collector for logistics Test Model. ........................ : ZS-300L Standards .......................... : FCC Part 22H, FCC Part 24E Date of Receipt sample .... : Dec. 29, 2021 Date of Test........................ : Dec. 29, 2021 to Feb. 24, 2022 Date of Issue ..................... : Feb. 24, 2022 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Tested by: Reviewed By: Approved & Authorized By: Mike Shi / Project Engineer Jason Su / RF Manager Silin Chen / Manager Reference No.: WTX21X12150432W-1 Page 2 of 53 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................4 1.2 TEST STANDARDS ...................................................................................................................................................6 1.3 TEST METHODOLOGY .............................................................................................................................................6 1.4 TEST FACILITY .......................................................................................................................................................6 1.5 EUT SETUP AND TEST MODE .................................................................................................................................7 1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................9 1.7 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 10 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 12 3. RF OUTPUT POWER ............................................................................................................................................ 13 3.1 STANDARD APPLICABLE ....................................................................................................................................... 13 3.2 TEST PROCEDURE ................................................................................................................................................. 13 3.3 SUMMARY OF TEST RESULTS/PLOTS ..........…

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