ST2-IT376BHand Hygiene Sensor

FCC regulatory conformance: RF Exposure IC regulatory conformance RF Exposure 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. (2) This device must accept any interference received, including interference that may cause undesired operation. 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 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with CAN ICES-3 (B)/NMB-3(B). This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subjectto the following two conditions: (1) this device may not cause harmful interference, and (2) thisdevice must accept any interference received, including interference that may cause undesiredoperation. Cetappareilestconformeà la norme CAN ICES-3 (B)/NMB-3 (B). Le présentappareilestconforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitationestautorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillageradioélectriquesubi, mêmesi le brouillageest susceptible d'encompromettre le fonctionnement. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Cetéquipementestconforme aux limites d’exposition aux rayonnements de la IC établies pour unenvironnement non contrôé. Cetéquipement doit être installé et fonctionnerà au moins20cm dedistance d’un radiateurou de votre corps.

826 Newtown-Yardley Road | Newtown, PA 18940 | Phone 215.860.2928 | Fax 215.359.0659 | www.centrak.com © CenTrak 2020. All Rights Reserved | CenTrak is a trademark of CenTrak, Inc. Proprietary and Confidential Information. FCC ID: ST2-IT376B 8 February 2022 Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To whom it may concern: We, the undersigned, hereby authorize Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on our behalf in all manners with applicable authorities directly relating to FCC equipment authorization for FCC ID: ST2-IT376B, including signing of all documents directly relating to these matters. Any and all acts carried out by Shenzhen BALUN Technology Co., Ltd. on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Regards, Sherre Staves VP, Engineering CenTrak

826 Newtown-Yardley Road | Newtown, PA 18940 | Phone 215.860.2928 | Fax 215.359.0659 | www.centrak.com © CenTrak 2020. All Rights Reserved | CenTrak is a trademark of CenTrak, Inc. Proprietary and Confidential Information. FCC ID: ST2-IT376B 8 February 2022 Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 FCC Confidentiality Request In accordance with 0.459 & 0.457 of CFR 47, please, accept this letter as official notification that the following constitutes Confidential Information. CenTrak requests that the following are kept as confidential for reference ID: FCC ID: ST2- IT376B. The information provided is for the sole purpose of inclusion as exhibits in the Application for Certificate of the FCC ID stated above: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf Part list BOM.pdf And below exhibit kept short-term confidential (180 days): External photos External photos.pdf Test setup photos test photo.pdf Internal photos Internal photos.pdf User manual User manual.pdf These documents contain detailed system and equipment description and related information about the product which CenTrak Inc considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis from which future technological products will evolve, CenTrak Inc considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Regards, Sherre Staves SVP, Engineering CenTrak

Centrak, Inc. Agent Authorization Company: Centrak, Inc. Address: 826 Newtown-Yardley Rd, Newtown, Pennsylvania 18940, United States Product Name: Hand Hygiene Sensor Model Number(s): IT-376, IT-376 H Product Description: Hand Hygiene Sensor We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022-03-03 Name: Sherre Staves Title: VP Company: Centrak, Inc.

Annex No.: BL-SZ21B1060-AW 1 / 3 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Annex No.: BL-SZ21B1060-AW 2 / 3 LEFT VIEW OF EUT RIGHT VIEW OF EUT Annex No.: BL-SZ21B1060-AW 3 / 3 TOP VIEW OF EUT BOTTOM VIEW OF EUT

Lable: IT-376 : IT-376 H : Location:

Annex No.: BL-SZ21B1060-AI 1 / 4 EUT INTERNAL PHOTOS EUT UNCOVER VIEW 1 EUT UNCOVER VIEW 2 125 kHz ANTENNA Annex No.: BL-SZ21B1060-AI 2 / 4 MAIN BOARD TOP VIEW MAIN BOARD REAR VIEW RF Chip RFID ANTENNA Annex No.: BL-SZ21B1060-AI 3 / 4 SUB BOARD TOP VIEW SUB BOARD REAR VIEW Annex No.: BL-SZ21B1060-AI 4 / 4 SECONDARY BOARD 1 TOP VIEW SECONDARY BOARD 1 REAR VIEW

RF Exposure Evaluation For FCC ID: ST2-IT376B Refer user manual this device is a Hand Hygiene Sensor, and this device was designed used in Mobile devices that the minimum distance between human’s body is 20 cm. Based on the 47CFR 2.1091, this device belongs to Mobile device. The definition of the category as following: Mobile Derives: CFR Title 47 §2.1091(b) (b) For purposes of this section, a mobile device is defined 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 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. FCC KDB 447498 D01 General RF Exposure Guidance v06 Limit Devices operating in standalone mobile exposure conditions may contain a single transmitter or multiple transmitters that do not transmit simultaneously. A minimum test separation distance ≥ 20 cm is required between the antenna and radiating structures of the device and nearby persons to apply mobile device exposure limits. The distance must be fully supported by the operating and installation configurations of the transmitter and its antenna(s), according to the source-based time- averaged maximum power requirements of § 2.1091(d)(2). In cases where cable losses or other attenuations are applied to determine compliance, the most conservative operating configurations and exposure conditions must be evaluated. The minimum test separation distance required for a device to comply with mobile exposure conditions must be clearly identified in the installation and operating instructions, for all installation and exposure conditions, to enable users and installers to comply with RF exposure requirements. For mobile devices that have the potential to operate in portable device exposure conditions, similar to the configurations described in § 2.1091(d)(4), a KDB inquiry is required to determine the SAR test requirements for demonstrating compliance. When the categorical exclusion provision of § 2.1091(c) applies, the minimum test separation distance may be estimated, when applicable, by simple calculations according to plane-wave equivalent conditions, to ensure the transmitter and its antenna(s) can operate in manners that meet or exceed the estimated distance. The source-based time-averaged maximum radiated power, according to the maximum antenna gain, must be applied to calculate the field strength and power density required to establish the minimum test separation distance. When the estimated test separation distance becomes overly conservative and does not support compliance, MPE measurement or computational modeling may be used to determine the required minimum separation distance. According to FCC Part 1.1307, systems operating under the provisions of this section shall be operated in a manner the ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidelines. Limits for General Population/ Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength(E)(V/m) Magnetic Field Strength (H)(A/m) Power Density (S)(mW/cm 2 ) 0.3-1.34 614 1.63 (100)* 1.34-30 824/f 2.19/f (180/f2)* 30-300 27.5 0.073 0.2 300-1500 f/1500 1500-100,000 1.0 MPE calculation formula Where: S = power density P = output power (mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = Separation distance between radiator and human body (cm) Test Data RFID Frequency (MHz) Field Strength @3m (dBuV/m) ERP (dBm) 904 86.27 -8.96 915 84.22 -11.01 926 83.74 -11.49 Note 1: This report listed the worst case value, please refer to RF test Report No. BL-SZ21B1060-601, section A.3 Field Strength of Fundamental Emissions. Note 2: The value of maximum peak output power is according to the method described in ANSI C63.10 clause 11.12.2.2 General procedure for conducted measurements in restricted bands: a) Measure the conducted output power (in dBm) using the detector specified (see guidance regarding measurement procedures for determining quasi-peak, peak, and average conducted output power, respectively). b) Add the maximum transmit antenna gain (in dBi) to the measured output power level to determine the ERP level (see guidance on determining the applicable antenna gain) c) Add the appropriate maximum ground reflection factor to the ERP level (6 dB for frequencies ≤ 30 MHz, 4.7 dB for frequencies between 30 MHz and 1000 MHz, inclusive and 0 dB for frequencies > 1000 MHz). d) For devices with multiple antenna-ports, measure the power of each individual chain and sum the ERP of all chains in linear terms (e.g., Watts, mW). e) Convert the resultant ERP level to an equivalent electric field strength using the following relationship: E = ERP – 20log D + 104.8 where: E = electric field strength in dBμV/m, ERP = equivalent isotropic radiated power in dBm D = specified measurement distance in meters. Note 3: Pout ERP (dBm) = Field Strength of Fundamental (dBuV/m) -95.23 (dB) Tune-up power Mode Range (dBm) RFID (-12.00) – (-8.00) Test result Evolution mode Maximum ERP (dBm) Antenna Gain (typical) (dBi) Total Power (mw) Distance (cm) Limit of Power Density (mW/cm²) Power Density (mW/cm²) Verdict RFID -8.00 0 0.16 20 0.62 0.0001 Pass Note: 1. The Hand Hygiene Sensor work frequency range used is 902 MHz ~ 928 MHz the result close to the limit by the above formula so. 2. More power list please refer to RF test report. Conclusion: RF exposure Evaluation Results: Compliance

Block B, 1st FL,Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong, P. R. China 518055 TEL: +86-755-66850100, FAX: +86-755-61824271 Email: [email protected] www.baluntek.com 1 / 16 RF ISSUED BY Shenzhen BALUN Technology Co., Ltd. FOR Hand Hygiene Sensor ISSUED TO CENTRAK, INC. 826 Newtown Yardley Road, Newtown, Pennsylvania 18940, United States Report No.: BL-SZ21B1060-402 EUT Name: Hand Hygiene Sensor Model Name: IT-376 (refer section 2.4) Tested by: Brand Name: Centrak Xiong Chong Test Standard: 47 CFR Part 15 Subpart C Date Mar. 10, 2022 RSS-310 Issue 5 RSS-Gen Issue 5 (refer section 3.1) Approved by: FCC ID: ST2-IT376B Liao Jianming (Technical Director) Test Conclusion: Pass Date Mar. 10, 2022 Test Date: Dec. 06, 2021 Date of Issue: Mar. 10, 2022 NOTE: This test report of test results only related to testing samples, which can be duplicated completely for the legal use with the approval of the applicant; it shall not be reproduced except in full, without the written approval of Shenzhen BALUN Technology Co., Ltd. Any objections should be raised within thirty days from the date of issue. To validate the report, please contact us. TESTREPORT Report No.: BL-SZ21B1060-402 2 / 16 Revision History Version Issue Date Revisions Rev. 01 Feb. 28, 2022 Initial Issue Rev. 02 Mar. 10, 2022 Modify the name and address of the applicant Update Product Type in section 2.6 TABLE OF CONTENTS 1 sGENERAL INFORMATION .................................................................................................................... 4 1.1 Identification of the Testing Laboratory ............................................................................................. 4 1.2 Identification of the Responsible Testing Location ............................................................................ 4 1.3 Laboratory Condition ......................................................................................................................... 4 1.4 Announce .......................................................................................................................................... 4 2 PRODUCT INFORMATION ..................................................................................................................... 5 2.1 Applicant Information ........................................................................................................................ 5 2.2 Manufacturer Information .................................................................................................................. 5 2.3 Factory Information ........................................................................................................................... 5 2.4 General Description for Equipment under Test (EUT) ...................................................................... 5 2.5 Ancillary Equipment .......................................................................................................................... 5 2.6 Technical Information ........................................................................................................................ 5 3 SUMMARY OF TEST RESULTS ............................................................................................................. 6 3.1 Test Standards .................................................................................................................................. 6 3.2 Verdict ............................................................................................................................................... 6 3.3 Test Uncertainty ................................................................................................................................ 6 4 GENERAL TEST CONFIGURATIONS .................................................................................................... 7 4.1 Test Environments ............................................................................................................................ 7 4.2 Test Equipment List .......................................................................................................................... 7 4.3 Test Setups ....................................................................................................................................... 8 5 TEST ITEMS .......................................................................................................................................... 10 5.1 Emission Tests ................................................................................................................................ 10 ANNEX A TEST RESULTS ....................................................................................................................... 14 A.1 Radiated Emission .......................................................................................................................... 14 A.2 Conducted Emission ....................................................................................................................... 15 Report No.: BL-SZ21B1060-402 3 / 16 A.3 Emissions Bandwidth ...................................................................................................................... 15 ANNEX B TEST SETUP PHOTOS ........................................................................................................... 16 ANNEX C EUT EXTERNAL PHOTOS ...................................................................................................... 16 ANNEX D EUT INTERNAL PHOTOS ....................................................................................................... 16 Report No.: BL-SZ21B1060-402 4 / 16 1 GENERAL INFORMATION 1.1 Identification of the Testing Laboratory Company Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1st FL, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 …

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Block B, 1st FL, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong, P. R. China 518055 TEL: +86-755-66850100, FAX: +86-755-61824271 Email: [email protected] www.baluntek.com 1 / 33 RF ISSUED BY Shenzhen BALUN Technology Co., Ltd. FOR Hand Hygiene Sensor ISSUED TO CENTRAK, INC. 826 Newtown Yardley Road, Newtown, Pennsylvania 18940, United States Report No.: BL-SZ21B1060-601 EUT Name: Hand Hygiene Sensor Tested by: Model Name: IT-376 (refer section 2.4) Yu Yingyuan Brand Name: Centrak Date Mar. 10, 2022 Test Standard: 47 CFR Part 15 Subpart C RSS-210 Issue 10 RSS-Gen Issue 5 (refer section 3.1) Approved by: FCC ID: ST2-IT376B Liao Jianming IC Number: 6012A-IT376B (Technical Director) Test Conclusion: Pass Date Mar. 10, 2022 Test Date: Dec. 07, 2021 ~ Mar. 08, 2022 Date of Issue: Mar. 10, 2022 NOTE: This test report of test results only related to testing samples, which can be duplicated completely for the legal use with the approval of the applicant; it shall not be reproduced except in full, without the written approval of Shenzhen BALUN Technology Co., Ltd. Any objections should be raised within thirty days from the date of issue. To validate the report, please contact us. TESTREPORT Report No.: BL-SZ21B1060-601 2 / 33 Revision History Version Issue Date Revisions Rev. 01 Mar. 01, 2022 Initial Issue Rev. 02 Mar. 10, 2022 Modified the name and address of the applicant; Update the technical information in section 2.5 and data in sections A.1 and A.3 TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) ........................................................................ 5 1.1 Identification of the Testing Laboratory ............................................................................................ 5 1.2 Identification of the Responsible Testing Location ........................................................................... 5 1.3 Laboratory Condition ....................................................................................................................... 5 1.4 Announce ........................................................................................................................................ 5 2 PRODUCT INFORMATION ................................................................................................................... 6 2.1 Applicant Information ....................................................................................................................... 6 2.2 Manufacturer Information ................................................................................................................ 6 2.3 Factory Information ......................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ..................................................................... 6 2.5 Technical Information ...................................................................................................................... 6 2.6 Additional Instructions ..................................................................................................................... 6 3 SUMMARY OF TEST RESULTS ........................................................................................................... 7 3.1 Test Standards ................................................................................................................................ 7 3.2 Verdict ............................................................................................................................................. 7 4 GENERAL TEST CONFIGURATIONS .................................................................................................. 8 4.1 Test Environments .......................................................................................................................... 8 4.2 Test Equipment List ......................................................................................................................... 8 4.3 Description of Test Setup ................................................................................................................ 9 4.3.1 For Antenna Port Test .............................................................................................................. 9 4.3.2 For AC Power Supply Port Test ................................................................................................ 9 4.3.3 For Radiated Test (Below 30 MHz) ......................................................................................... 10 4.3.4 For Radiated Test (30 MHz-1 GHz) ........................................................................................ 10 4.3.5 For Radiated Test (Above 1 GHz) .......................................................................................... 11 Report No.: BL-SZ21B1060-601 3 / 33 5 TEST ITEMS ....................................................................................................................................... 12 5.1 Antenna Requirements .................................................................................................................. 12 5.1.1 Relevant Standards ................................................................................................................ 12 5.1.2 Antenna Anti-Replacement Construction ................................................................................ 12 5.1.3 Antenna Gain ......................................................................................................................... 12 5.2 20 dB and 99% Bandwidth ............................................................................................................ 13 5.2.1 Limit........................................................................................................................................ 13 5.2.2 Test Setups ...........................................…

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Annex No.: BL-SZ21B1060-AE-2 1 / 1 TEST SETUP PHOTOS 1 R adiated Test Photo Below 30MHz Close-up

Annex No.: BL-SZ21B1060-AR 1 / 4 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30MHz Close-up Annex No.: BL-SZ21B1060-AR 2 / 4 30MHz-1GHz Close-up Annex No.: BL-SZ21B1060-AR 3 / 4 Above 1GHz Close-up Annex No.: BL-SZ21B1060-AR 4 / 4 2 Conducted Test Photo Conducted Test-RFID