SZY-SA7903Door & Window Sensor

Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 2 of 21 External Photos Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 3 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 4 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 5 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 6 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 7 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 8 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 9 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 10 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 11 of 21

Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 12 of 21 Internal Photos Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 13 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 14 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 15 of 21

of Applicant: Dexatek Technology Ltd.. Address: 16F.-1, No.81, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei City 22101, Taiwan (R.O.C.) Tested and Prepared by Worldwide Testing Services (Taiwan) Co., Ltd. FCC Registration No.: TW1072, TW1140, TW1146, TW1477, TW0037 Industry Canada filed test laboratory Reg. No.: 20037, 31634 Report No.: W6M22602-24972-EE 6F, NO. 58, LANE 188, RUEY-KUANG RD., NEIHU TAIPEI 114, TAIWAN, R.O.C. TEL: 886-2-66068877 FAX: 886-2-66068879 E-mail: [email protected] FCC RF Exposure Exemption report for Door & Window Sensor Model No.: SA-7903 FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 1 of 11 Registration number: W6M22602-24972-EE FCC ID: SZY-SA7903 TABLE OF CONTENTS 1 G ENERAL INFORMATION .......................................................................................................... 2 1.1 N OTES .......................................................................................................................................... 2 1.2 T ESTING LABORATORY ................................................................................................................ 2 1.3 APPLICATION DETAILS ................................................................................................................. 3 1.4 GENERAL INFORMATION OF TEST ITEM ........................................................................................ 4 1.5 T EST STANDARDS ......................................................................................................................... 8 2 TEST CONFIGURATION .............................................................................................................. 9 2.1 TEST ENVIRONMENT .................................................................................................................... 9 2.2 MEASUREMENT UNCERTAINTY .................................................................................................... 9 2.3 T EST EQUIPMENT LIST ................................................................................................................. 9 3 EQUIVALENT ISOTROPIC RADIATED POWER (EIRP)......................................................10 3.1 EXEMPTION LIMITS FOR ROUTINE EVALUATION ACCORDING TO FCC KDB PUBLICATION ...... 10 R egistration number: W6M22602-24972-EE FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 2 of 11 1 General Information 1.1 Notes The purpose of conformity testing is to increase the probability of adherence to the essential requirements or conformity specifications, as appropriate. The complexity of the technical specifications, however, means that full and thorough testing is impractical for both technical and economic reasons. Furthermore, there is no guarantee that a test sample which has passed all the relevant tests conforms to a specification. Neither is there any guarantee that such a test sample will interwork with other genuinely open systems. The existence of the tests nevertheless provides the confidence that the test sample possesses the qualities as maintained and that is performance generally conforms to representative cases of communications equipment. Laboratory disclaimer- 1. The test results of this test report relate exclusively to the item tested as specified in 1.5. 2. The test report may only be reproduced or published in full. 3. Reproduction or publication of extracts from the report requires the prior written approval of the Worldwide Testing Services(Taiwan) Co., Ltd. 4. Antenna gain is provided by applicant and laboratory issue relevant data and results. Tester: March 19, 2026 Sky Liu Date WTS-Lab. Name Signature Technical responsibility for area of testing: March 19, 2026 Kevin Wang Date WTS Name Signature Registration number: W6M22602-24972-EE FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 3 of 11 1.2 Testing laboratory 1.2.1 Location 10m OATS No.5-1, Lishui, Shuang Sing Village, Wanli Dist., New Taipei City 207, Taiwan (R.O.C.) 3 meter semi-anechoic chamber No. 99, Sec. 1, Balian Rd., Xizhi Dist., New Taipei City 221032, Taiwan (R.O.C.) Worldwide Testing Services (Taiwan) Co., Ltd. 6F., No. 58, Ln. 188, Ruiguang Rd., Neihu Dist., Taipei City 114 , Taiwan (R.O.C.) Tel: 886-2- 6606-8877 1.2.2 Details of accreditation status Accredited testing laboratory FCC filed test laboratory Reg. No.: TW1072, TW1140, TW1146, TW1477, TW0037 Industry Canada filed test laboratory Reg. No.: 20037, 31634 Test location, where different from Worldwide Testing Services (Taiwan) Co., Ltd. : Name: ./. Accredited no.: ./. Street: ./. Town: ./. Country: ./. 1.3 Application details Approval holder Name: Dexatek Technology Ltd. Street: 16F.-1, No.81, Sec. 1, Xintai 5th Rd., Xizhi Dist., City: New Taipei City 22101, Country: Taiwan (R.O.C.) Manufacturer: (if applicable) Name: ./. Street: ./. Town: ./. Country: ./. Registration number: W6M22602-24972-EE FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 4 of 11 Date of receipt of test item: February 05, 2026 Date of test: from February 06, 2026 to March 18, 2026 1.4 General information of Test item Type of test item: Door & Window Sensor Model no.: SA-7903 Multi-listing model no.: ./. Brand name: Dexatek Power supply: Battery 3.6Vd.c. Technical data: Mode Channel Conducted Power (dBm) BLE 1M Ch 0 : 2402 MHz 5.99 Ch 19 : 2440 MHz 6.29 Ch 39 : 2480 MHz 6.80 BLE 2M Ch 0 : 2402 MHz 6.05 Ch 19 : 2440 MHz 6.33 Ch 39 : 2480 MHz 6.84 THREAD Low : 2405 MHz 7.46 Mid : 2440 MHz 7.45 High : 2480 MHz 7.64 Type of antenna: PCB antenna Antenna gain: 3.02 dBi Operation modes: Duplex Modulation type: GFSK Sample no.: #01 Classification: Fixed Device Mobile Device (Human Body distance ＞ 20cm) Portable Device (Human Body distance ＜ 20cm) Registration number: W6M22602-24972-EE FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 5 of 11 1.5 Duty cycle and factor The duty factor is computed as [10 log (1 / D)], where D is the duty cycl…

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of Applicant: Dexatek Technology Ltd.. Address: 16F.-1, No.81, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei City 22101, Taiwan (R.O.C.) Tested and Prepared by Worldwide Testing Services (Taiwan) Co., Ltd. FCC Registration No.: TW1072, TW1140, TW1146, TW1477, TW0037 Industry Canada filed test laboratory Reg. No.: 20037, 31634 Report No.: W6M22602-24972-C-1 6F, NO. 58, LANE 188, RUEY-KUANG RD., NEIHU TAIPEI 114, TAIWAN, R.O.C. TEL: 886-2-66068877 FAX: 886-2-66068879 E-mail: [email protected] 47 CFR PART 15 SUBPART C TEST REPORT for Door & Window Sensor Model No.: SA-7903 FCC ID: SZY-SA7903 Registration number: W6M22602-24972-C-1 FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 1 of 38 TABLE OF CONTENTS 1 GENERAL INFORMATION ......................................................................................................................................... 2 1.1 NOTES ...................................................................................................................................................................... 2 1.2 TESTING LABORATORY ............................................................................................................................................. 3 1.3 APPLICATION DETAILS .............................................................................................................................................. 3 1.4 GENERAL INFORMATION OF TEST ITEM ..................................................................................................................... 4 1.5 DUTY CYCLE AND FACTOR ........................................................................................................................................ 4 1.6 TEST STANDARDS ..................................................................................................................................................... 8 2 TEST CONFIGURATION ............................................................................................................................................. 9 2.1 TEST ENVIRONMENT ................................................................................................................................................. 9 2.2 MEASUREMENT UNCERTAINTY ................................................................................................................................. 9 2.3 TEST EQUIPMENT LIST ............................................................................................................................................ 10 3 TEST RESULTS (ENCLOSURE) ............................................................................................................................... 11 3.1 PEAK OUTPUT POWER (TRANSMITTER) ................................................................................................................... 12 3.2 SPURIOUS EMISSIONS RADIATED – TRANSMITTER OPERATING ............................................................................... 19 3.3 EMISSIONS IN NONRESTRICTED FREQUENCY BANDS ................................................................................................ 21 3.4 MINIMUM 6 DB BANDWIDTH .................................................................................................................................. 25 3.5 PEAK POWER SPECTRAL DENSITY .......................................................................................................................... 31 3.6 POWER LINE CONDUCTED EMISSION ...................................................................................................................... 37 Appendix: Diagrams Registration number: W6M22602-24972-C-1 FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 2 of 38 1 General Information 1.1 Notes The purpose of conformity testing is to increase the probability of adherence to the essential requirements or conformity specifications, as appropriate. The complexity of the technical specifications, however, means that full and thorough testing is impractical for both technical and economic reasons. Furthermore, there is no guarantee that a test sample which has passed all the relevant tests conforms to a specification. Neither is there any guarantee that such a test sample will interwork with other genuinely open systems. The existence of the tests nevertheless provides the confidence that the test sample possesses the qualities as maintained and that is performance generally conforms to representative cases of communications equipment. Laboratory disclaimer- 1. The test results of this test report relate exclusively to the item tested as specified in 1.5. 2. The test report may only be reproduced or published in full. 3. Reproduction or publication of extracts from the report requires the prior written approval of the Worldwide Testing Services(Taiwan) Co., Ltd. 4. Antenna gain is provided by applicant and laboratory issue relevant data and results. Tester: March 19, 2026 Sky Liu Date WTS-Lab. Name Signature Technical responsibility for area of testing: March 19, 2026 Kevin Wang Date WTS Name Signature Registration number: W6M22602-24972-C-1 FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Page 3 of 38 1.2 Testing laboratory 1.2.1 Location 10m OATS No.5-1, Lishui, Shuang Sing Village, Wanli Dist., New Taipei City 207, Taiwan (R.O.C.) 3 meter semi-anechoic chamber No. 99, Sec. 1, Balian Rd., Xizhi Dist., New Taipei City 221032, Taiwan (R.O.C.) Worldwide Testing Services (Taiwan) Co., Ltd. 6F., No. 58, Ln. 188, Ruiguang Rd., Neihu Dist., Taipei City 114 , Taiwan (R.O.C.) Tel: 886-2- 6606-8877 1.2.2 Details of accreditation status Accredited testing laboratory FCC filed test laboratory Reg. No.: TW1072, TW1140, TW1146, TW1477, TW0037 Industry Canada filed test laboratory Reg. No.: 20037, 31634 Test location, where different from Worldwide Testing Services (Taiwan) Co., Ltd. : Name: ./. Accredited no.: ./. Street: ./. Town: ./. Country: ./. …

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SA-7 903 Antenna Test Report Report by George 2 026 /0 2 /0 9 Table of Contents A. Antenna Testing Conditions 1. Test System 2. Antenna Under Test 3. Antenna Placement B. Antenna RF Characteristics 1. Return Loss and Isolation 2. Gain Table 3. 3D Radiation / 2D Pattern Antenna Test System Antenna Under Test X Y Z Antenna Placement Ant. 1.7mm Return loss and Isolation Gain Table Ant. Frequency (MHz) 2400 2450 2500 Efficiency (dB) -2.35 -2.44 -2.25 Peak Gain (dBi) 2.92 3.02 2.99 Efficiency (%) 58.23 57.08 59.61 Ant. 2.4G Pattern 3D X-Y Z-Y Z-X X Y Z Y Z X Summary
Ant. 2.4GHz Efficiency (%) ≧ 57%

Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 16 of 21 Set Up Photo of Radiated Emission EMI Below 1GHz Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 17 of 21 Above 1GHz Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 18 of 21 Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 19 of 21 RF Below 1GHz Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 20 of 21 Above 1GHz Registration number: W6M22602-24972-FCC FCC ID: SZY-SA7903 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix page 21 of 21