2AZMI-EL-WSX-923Wireless LoRaWAN Sensor

P a g e 1 | 2 Title: EL-WSX-923 User Manual Version: 0.4 Last update: 08 Jul 21 !!! Warming !!! This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Notice: Any changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. NOTE: 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/ TV technician for help. RF exposure statements 1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body or nearby persons. 3. This device is not a portable device and it operated in toilet or office. P a g e 2 | 2 How to use: 1. Plug in battery to power up. 2. After power up, the wireless sensor transmitter will upload data to LoRaWAN Gateway/other LoRaWAN receive devices at a configurable interval (example: every 5 mins) automatically. (Type in RS232 command to change configuration.) 3. The red LED will light up during transmission (in Tx device). 4. The receive device will blink the red LED once when packets are correctly received. 5. Unplug the battery to power off. Function: The sensor board will upload the humidity and temperature data to LoRaWAN Gateway at every 5/10/30/60 minutes interval.

Enlighten Company Limited (2021-04-25) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Willa Lan at A Test Lab Techno Corp.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Lee Kau Sun

Enlighten Company Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-04-25 Subject; Request for Confidentiality FCC ID: 2AZMI-EL-WSX-923 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Lee Kau Sun Title: Managing Director

Enlighten Company Limited Declaration of Product Identity To whom it may concern: We Enlighten Company Limited Rm 12, 12/F, Blk A, Profit Industrial Building, No.1-15 Kwai Fung Crescent, Kwai Chung, N.T. Hong Kong Declare that our products: Product name: Wireless LoRaWAN Sensor Model number: EL-WSX-923 And Product name: Wireless LoRaWAN Sensor Model number: AECIHWSNE2xx Have the same technical construction including software design, RF module, circuit design and PCB layout. The mentioned difference(s) between the models will not affect its electromagnetic emissions, radio-frequency output signal characteristics and output power level. The differences between the models are: Brand name difference: Model no. EL-WSX-923 is for Enligten, Model no. AECIHWSNE2xx is for ChinoINT. Yours Faithfully, Name: Lee Kau Sun Tel: +85292362082 Email address: [email protected] Date of Issue: 2021-7-1

Page 1 of 4 External Photos Model Number: EL-WSX-923 FCC ID: 2AZMI-EL-WSX-923 Page 2 of 4 EUT Photo (1) EUT Photo (2) Page 3 of 4 EUT Photo (3) EUT Photo (4) Page 4 of 4 EUT Photo (5) EUT Photo (6)

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Page 1 of 6 Internal Photos Model Number: EL-WSX-923 FCC ID: 2AZMI-EL-WSX-923 Page 2 of 6 EUT Photo (1) EUT Photo (2) Page 3 of 6 EUT Photo (3) EUT Photo (4) Page 4 of 6 EUT Photo (5) EUT Photo (6) Page 5 of 6 EUT Photo (7) EUT Photo (8) Page 6 of 6 EUT Photo (9) EUT Photo (10)

A Test Lab Techno Corp. 101-104, 1F, A building, Safflower ridge industrial area, Taoyuan street, Nanshan district, Shenzhen Tel：+86-755-23987770 / Fax：+86-755-2663777 MPE Report Test Report No. ： SZ2105FS11 Applicant ： Enlighten Company Limited Product Type ： Wireless LoRaWAN Sensor Trade Name ： Enligten, ChinoINT Model Number ： EL-WSX-923, AECIHWSNE2xx Received Date ： Apr. 15, 2021 Test Period ： May 19, 2021 Issue Date ： May 25, 2021 Test Specification ： ANSI / IEEE Std.C95.1-1992 / IEEE Std. 1528-2013 47 CFR § 2.1091 47 CFR § 1.1310 1. The test operations have to be performed with cautious behavior, the test results are as attached. 2. The test results are under chamber environment of A Test Lab Techno Corp. A Test Lab Techno Corp. does not assume responsibility for any conclusions and generalizations drawn from the test results with regard to other specimens or samples. 3. The measurement report has to be written approval of A Test Lab Techno Corp. It may only be reproduced or published in full. This report shall not be reproduced except in full, without the written approval of A Test Lab Techno Corp. 4. This document may be altered or revised by A Test Lab Techno. Corp. personnel only, and shall be noted in the revision section of the document. Approved By ： Tested By ： (Louis Shen) (Joyce Feng) Report Number: SZ2105FS11 Rev. 00 Page 1 of 6 Contents 1. Description of Equipment under Test (EUT) ....................................................... 3 2. Human Exposure Assessment ............................................................................ 4 3. RF Output Power................................................................................................... 5 4. Test Result ............................................................................................................. 6 Report Number: SZ2105FS11 Rev. 00 Page 2 of 6 1. Description of Equipment under Test (EUT) Applicant Enlighten Company Limited Rm 12, 12/F, Blk A, Profit Industrial Building, No.1-15 Kwai Fung Crescent, Kwai Chung, N.T. Hong Kong Manufacturer Enlighten Company Limited Rm 12, 12/F, Blk A, Profit Industrial Building, No.1-15 Kwai Fung Crescent, Kwai Chung, N.T. Hong Kong Product Type Wireless LoRaWAN Sensor Trade Name Enligten, ChinoINT Model Number EL-WSX-923, AECIHWSNE2xx Model Difference Description Due to market demand, the models are differ from each other in brand, the PCB layout, circuit, and schematic design are the same. Test Model EL-WSX-923 FCC ID 2AZMI-EL-WSX-923 Frequency Range Operate Band Frequency Range (MHz) SRD 923.200 Antenna Information ANT Model Type Max. Gain (dBi) ANT-0 HY-057 wire antenna SRD 2.5 RF Evaluation 0.000217 mW/cm 2 Test mode Continuous TX Mode Temperature Range 5 ~ 40°C The above equipment was tested by A Test Lab Techno Corp. For compliance with the requirements set forth in 47 CFR § 2.1091 / 47 CFR § 1.1310. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties Report Number: SZ2105FS11 Rev. 00 Page 3 of 6 2. Human Exposure Assessment Due to the design and installation of this product, it is not possible to conduct SAR evaluation. This is because client either manufactures or supplies the antenna(s) that will be used in the installation of this product. Therefore, this product will be evaluated as a mobile device per 47 CFR § 1.1310 titled “Radiofrequency radiation exposure limits”, generally referred to as MPE limits. In 47 CFR § 2.1091, paragraph (b) defines a mobile device as “a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 cm is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. ” This product is intended to be installed into a vehicle such that the unit is physically secured at one location. In the installation guide supplied with the product, Client has made the following statement: “IMPORTANT: To meet the FCC’s RF Exposure Guidelines, the antenna should be installed so there is at least 20 cm of separation between the body of the user and nearby persons and the antenna”. Based on the installation of the transceiver and the antenna, the transmitters radiating structure is more than 20 cm from the user. Thus, this product is a “mobile device” as defined in section § 2.1091 paragraph (b). Exposure evaluation 2 4R PG S   Where S: power density P: power input to the antenna G: power gain of the antenna in the direction of interest relative to an isotropic radiator. R: distance to the center of radiation of the antenna. Report Number: SZ2105FS11 Rev. 00 Page 4 of 6 3. RF Output Power Operate Band Frequency (MHz) Packet Type Conducted power (dBm) SRD 923.2 --- N/A Report Number: SZ2105FS11 Rev. 00 Page 5 of 6 4. Test Result Antenna Band Frequency (MHz) Limit (mw)/cm 2 Distance [R] (cm) Power [P] (dBm) ANT Gain (dBi) Numeri c Gain [G] Duty Cycl e Power with Duty cycle [TP] (mW) Power Density [S] (mw)/cm 2 SRD SRD 923.2 0.615 20 -2.12 2.5 1.78 1 1093 0.000217 Note: 1. Mobile or fixed location transmitters, minimum separation distance is 20 cm, even if calculations indicate MPE distance is less. 2. The Numeric Gain calculated by 10^(ant. Gain(dBi) /10). 3. Each band max power which perform MPE of any configurations. Report Number: SZ2105FS11 Rev. 00 Page 6 of 6

Note: 1.The test results are valid only for samples provided by customers and under the test conditions described in this report. 2.This report shall not be reproduced except in full, without the written approval of A Test Lab Technology Corporation. 3.The relevant information is provided by customers in this test report. According to the correctness, appropriateness or completeness of the information provided by the customer, if there is any doubt or error in the information which affects the validity of the test results, the laboratory does not take the responsibility. R F Te s t R e p o r t Issued Date: Jul. 09, 2021 Applicant ： Enlighten Company Limited Product Type ： Wireless LoRaWAN Sensor Trade Name ： Enligten, ChinoINT Model Number ： EL-WSX-923, AECIHWSNE2xx FCC ID ： 2AZMI-EL-WSX-923 EUT Rated Voltage ： DC 3.6V Test Voltage ： DC 3.6V Applicable Standard ： FCC 47 CFR PART 15 SUBPART C ANSI C63.10:2013 Receive Date ： Apr. 15, 2021 Test Period ： May 19 ~ Jul. 09, 2021 Issue by A Test Lab Techno Corp. 101-104, 1F, A building, Safflower ridge industrial area, Taoyuan street, Nanshan district, Shenzhen Tel：+86-755-23987770 / Fax：+86-755-26637771 http://www.atl-lab.com.tw/e-index.htm American Association for Laboratory Accreditation number: 3464.02 Test Firm MRA designation number: CN1168 Approved By ： Reviewed By ： (Manager) (Louis Shen) (Testing Engineer) (Joyce Feng) Report Number: SZ2105FR11 Rev. 00 Page 1 of 25 Revision History Rev. Issue Date Revisions 00 Jul. 09, 2021 Initial Issue Report Number: SZ2105FR11 Rev. 00 Page 2 of 25 TABLE OF CONTENTS 1 General Information ........................................................................................................ 4 1.1. Summary of Test Result .......................................................................................... 4 1.2. Measurement Uncertainty ....................................................................................... 4 2 EUT Description............................................................................................................... 5 3 Test Methodology ............................................................................................................ 6 3.1. Mode of Operation .................................................................................................. 6 3.2. EUT Test Step ......................................................................................................... 7 3.3. Configuration of Test System Details ...................................................................... 7 3.4. Test Instruments ..................................................................................................... 8 3.5. Test Site Environment ............................................................................................. 8 4 Measurement Procedure ................................................................................................. 9 4.1. 20 dB bandwidth ..................................................................................................... 9 4.2. Radiated Emissions Measurement ....................................................................... 10 4.3. Antenna Requirement ........................................................................................... 14 5 Test Results ................................................................................................................... 15 Annex A. 20dB bandwidth ............................................................................................... 15 Annex B. Radiated Emissions Measurement .................................................................. 17 Report Number: SZ2105FR11 Rev. 00 Page 3 of 25 1 General Information 1.1. Summary of Test Result Standard Item Results Remark 15.215(c) 20 dB bandwidth PASS ---- 15.209&15.249(a) Transmitter Radiated Emissions PASS ---- 15.249(d) Bandedge PASS ---- 15.203 Antenna Requirement PASS ---- CFR 47 Part 15.231(2010) / ANSI C63.10:2013 Standard Description CFR47, Part 15, Subpart C Intentional Radiators ANSI C63. 10: 2013 American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices Decision Rule ■ Uncertainty is not included. □ Uncertainty is included. 1.2. Measurement Uncertainty Test Item Frequency Range Uncertainty (dB) Radiated Emission 9KHz ~ 30MHz 1.5 30 MHz ~ 1000 MHz 1.7 1000 MHz ~ 18000 MHz 5.7 18000 MHz ~ 26500 MHz 5.5 26500 MHz ~ 40000 MHz 4.8 RF Bandwidth 4.96 % Report Number: SZ2105FR11 Rev. 00 Page 4 of 25 2 EUT Description Applicant Enlighten Company Limited Rm 12, 12/F, Blk A, Profit Industrial Building, No.1-15 Kwai Fung Crescent, Kwai Chung, N.T. Hong Kong Manufacturer Enlighten Company Limited Rm 12, 12/F, Blk A, Profit Industrial Building, No.1-15 Kwai Fung Crescent, Kwai Chung, N.T. Hong Kong Product Type Wireless LoRaWAN Sensor Trade Name Enligten, ChinoINT Model Number EL-WSX-923, AECIHWSNE2xx Model Difference Description Due to market demand, the models differ from each other in brand, the PCB layout, circuit, and schematic design are the same. Test Model EL-WSX-923 FCC ID 2AZMI-EL-WSX-923 Frequency Range 923.200 MHz Modulation Type CSS, FSK Number of Channels 1 Channel Antenna Type Wire antenna Antenna Gain 2.5 dBi Operate Temp. Range 5~40 °C Report Number: SZ2105FR11 Rev. 00 Page 5 of 25 3 Test Methodology 3.1. Mode of Operation Test Mode Note Mode 1: Transmitter Mode EUT works in normal mode Mode 2: Continuous TX Mode The manufacturer burn the firmware version in EUT in advance control the EUT to TX continuously, without test software and related power level setting parameter. Then, the above highest fundamental level mode of the configuration of the EUT and antenna was chosen for all final test items. By preliminary testing and verifying three axis (X, Y and Z) position of EUT transmitted status, it was found that “Z axis” position was the worst, then the final test was executed the worst condition and test data were recorded in this …

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Test Setup Photographs Radiated Emission Test model: EL-WSX-923 Description: Front View _ Below 1 GHz Report Number: SZ2105FR11 Rev. 00 Page 1 of 2 Test model: EL-WSX-923 Description: Front View _ Above 1 GHz Report Number: SZ2105FR11 Rev. 00 Page 2 of 2