UZAHP81046800Temperature Sensing Transmitter

PHOTOGRAPH OF THE PRODUCT FRONT VIEW OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT REAR VIEW OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT

PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT TOP VIEW PHOTOGRAPH OF THE PRODUCT PHOTOGRAPH OF THE PRODUCT INNER CIRCUIT BOTTOM VIEW

FCC ID: UZAHP81046800 Circuit Description The 433.92 MHz resonator drives the base of Q5 the final/buffer amplifier. The modulation provided by U1. The output of Q5 has the matching network consisting of R14, L3, L8, L1, L2 and C28, C29, C30, C32, C37, C35, C43, C36 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 3 cm long Metal antenna. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 3 Volt (“AA” size battery x 2) primary battery Operation Descriptions The transmitter is a temperature sensor operating at 433.92MHz band. The transmitter is powered by a 3V battery (“AA” size battery x 2) and the transmitting frequency is crystal controlled. The operation is achieved by different combinations of form pulse modulating signal on the 433.92 MHz carrier frequency. Remarks: The transmitter is a temperature sensing transmitter. The EUT transmits while a temperature change is being sensed. The transmission signal is modulated by IC, and the type is pulse modulation.

STC Test Report Date : 2010-01-25 Page 1 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from the Hong Kong Standards and Testing Centre Ltd. For full text of “Conditions of Issuance of Test Report”, please refer to overleaf or refer to the website of Homepage. Applicant (LUF011): Lung Fat Industries (HK) Co., Ltd. Flat 7, 8/F., New City Center, 2 Lei Yue Mun Road, Kwun Tong, Kowloon, Hong Kong. Manufacturer: Lung Fat Industries (HK) Co., Ltd. Flat 7, 8/F., New City Center, 2 Lei Yue Mun Road, Kwun Tong, Kowloon, Hong Kong. Description of Sample(s): Submitted sample(s) said to be Product: TUTCO Heat Pack Brand Name: Tutco Model Number: 81-0468-00 FCC ID: UZAHP81046800 Date Sample(s) Received: 2009-12-24, 2010-01-12 Date Tested: 2010-01-05 to 2010-01-15 Investigation Requested: Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15: 2008 and ANSI C63.4:2003 for FCC Certification. Conclusion(s): The submitted product COMPLIED with the requirements of Federal Communications Commission [FCC] Rules and Regulations Part 15. The tests were performed in accordance with the standards described above and on Section 2.2 in this Test Report. Remark(s): --- Dr. LEE Kam Chuen Authorized Signatory ElectroMagnetic Compatibility Department For and on behalf of The Hong Kong Standards and Testing Centre Ltd. STC Test Report Date : 2010-01-25 Page 2 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from The Hong Kong Standards and Testing Centre Ltd. For Conditions of Issuance of this test report, please refer to the overleaf or Homepage CONTENT: Cover Page 1 of 23 Content Page 2-3 of 23 1.0 General Details 1.1 Test Laboratory Page 4 of 23 1.2 Applicant Details Page 4 of 23 Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 5 of 23 Description of EUT operation 1.4 Date of Order Page 5 of 23 1.5 Submitted Sample(s) Page 5 of 23 1.6 Test Duration Page 5 of 23 1.7 Country of Origin Page 5 of 23 2.0 Technical Details 2.1 Investigations Requested Page 6 of 23 2.2 Test Standards and Results Summary Page 6 of 23 3.0 Test Results 3.1 Emission Page 7-10 of 23 3.2 Bandwidth Measurement Page 11-12 of 23 STC Test Report Date : 2010-01-25 Page 3 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from The Hong Kong Standards and Testing Centre Ltd. For Conditions of Issuance of this test report, please refer to the overleaf or Homepage Appendix A List of Measurement Equipment Page 13 of 23 Appendix B Duty Cycle Correction During 100 msec Page 14-20 of 23 Appendix C Periodic Operation Page 21 of 23 Appendix D Photographs Page 22-23 of 23 STC Test Report Date : 2010-01-25 Page 4 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from The Hong Kong Standards and Testing Centre Ltd. For Conditions of Issuance of this test report, please refer to the overleaf or Homepage 1.0 General Details 1.1 Test Laboratory The Hong Kong Standards and Testing Centre Ltd. EMC Laboratory 10 Dai Wang Street, Taipo Industrial Estate New Territories, Hong Kong Telephone: 852 2666 1888 Fax: 852 2664 4353 1.2 Applicant Details Applicant Lung Fat Industries (HK) Co., Ltd. Flat 7, 8/F., New City Center, 2 Lei Yue Mun Road, Kwun Tong, Kowloon, Hong Kong. Manufacturer Lung Fat Industries (HK) Co., Ltd. Flat 7, 8/F., New City Center, 2 Lei Yue Mun Road, Kwun Tong, Kowloon, Hong Kong. STC Test Report Date : 2010-01-25 Page 5 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from The Hong Kong Standards and Testing Centre Ltd. For Conditions of Issuance of this test report, please refer to the overleaf or Homepage 1.3 Equipment Under Test [EUT] Description of Sample Submitted sample(s) said to be Product: TUTCO Heat Pack Manufacturer: Lung Fat Industries (HK) Co., Ltd. Brand Name: Tutco Model Number: 81-0468-00 Rating: 3Vd.c. (“AA” size battery x 2) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is a Lung Fat Industries (HK) Co., Ltd. TUTCO Heat Pack. The EUT is an automatically activated transmitter, When the sensed temperature falls below the set point of the thermostat, the transmitter will send a signal to the receiver unit automatically. The transmission signal modulated by IC; and the type is pulse modulation. 1.4 Date of Order 2009-12-24, 2010-01-12 1.5 Submitted Sample(s): 2 Sample(s) 1.6 Test Duration 2010-01-05 to 2010-01-15 1.7 Country of Origin USA STC Test Report Date : 2010-01-25 Page 6 of 23 No. : HM164723 The Hong Kong Standards and Testing Centre Ltd. 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong Tel: (852) 2666 1888 Fax: (852) 2664 4353 Homepage: www.hkstc.org E-mail: [email protected] This report shall not be reproduced unless with prior written approval from The Hong Kong Standards and Testing Centre Ltd. For Conditions of Issuance of this test report…

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PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP