N9Z001H22Remote Thermo-Hygro Sensor

A E B FC G D SLIDE SLIDE (HANG)(STAND) ∞C ∞FTX RF REMOTE SENSOR RF 433Mhz Wireless Remote Sensor 001H22 A . LCD Displays temperature and humidity in toggle B. LED indicator Flashes when the remote unit transmits a reading C. ∞ C/ ∞ F slide switch Selection Centigrade ( ∞ C) or Fahrenheit ( ∞ F) D. T X Press once to re-transmit manually. Press and hold to clear the TX ID and start re-registration E. Battery compartment Accommodates two AAA-size batteries F. Battery door G. Removable table stand with wall-mount hole To enable the remote unit on a flat surface and support it in wall-mounting. During the 3 minutes when the home receiver is seeking for sensor registration signal, remove the bracket stand, and battery cover. Insert 2 pieces of AAA batteries into the battery compartment according to polarity markings. The channel 1 icon and the temperature/humidity will appear on the LCD of the receiving unit. -If the registration is sucessful, a beep confirmation will be heard. If not, check the AAA batteries, repeat the registration procedure again, or hold the TX button for 2 seconds to send the registration signal. Then, close the battery door. -To register sensor 2 and sensor 3: Press and hold the ìChannelî button for 2 seconds on the home receiver to select the channel. Insert batteries for sensor 2, the channel 2 icon and temperature will appear on the LCD of the receiving unit. Follow the same procedure to register sensor 3. Note: ï The sensor will transmit the registration code automatically once the batteries are inserted. If the batteries have been already inserted into the battery compartment , hold the TX 2 seconds for registration. ï If the ì---î icon appears on the outdoor remote sensor, move the unit closer to the receiving unit. Repeat the registration procedure again. ï The channels will be automatically assigned to the sensors respectively in sequence of registration. However, if all sensors are already registered, you can perform the registration again by selecting the desired channel and hold ìChannelî for 2 seconds to enable the receiving unit to receive RF temperature signals. For wireless remote sensor with detachable probe only If measurement of water, soil, or other liquid is desired, open the cover of the plug hole at the side of the sensor and insert the probe plug. (optional) Specification Recommended remote sensor operating range: Sensor with LCD display: +32∞F to +122∞F (0∞C to +50∞C) Detachable outdoor probe: -58∞F to +158∞F (-50∞C to +70∞C) Transmission range: Maximum 30 meters, open area Batteries: AAA size x 2 pcs. (remote sensor) Battery life: 6 months Transmission frequency: 433.92 MHz This device could be sensitive to electrostatic discharge, If electrostatic discharge or malfunctioning occurs, please reset this unit. ìModifications not authorized by the manufacturer may void users authority to operate this deviceî Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

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

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

SENSOR 001H22(686750) REV.0: 24 OCTOBER, 2003 SILKSCREEN CONFIRMATION Prepared by : Carmen Silkscreen arrangement Confirmed by : DG R&D

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

FCC ID: N9Z001H22 Circuit Description The 433MHz crystal oscillator drives the base of Q3 the final/buffer amplifier. The modulation provided by IC. The output of Q3 has the matching network consisting of L3 and C26 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source There is no external 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 (“AAA” size battery x 2) primary battery

Date: 2003-11-07 TEST REPORT Page 1 of 22 No.: HM111839 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.: HM111839 Equipment Under Test [EUT]: Remote Thermo-Hygro Sensor Model Number: 001H22 Applicant: Ewig Industries Co., Ltd. FCC ID : N9Z001H22 Date: 2003-11-07 TEST REPORT Page 2 of 22 No.: HM111839 CONTENT: Cover Page 1 of 22 Content Page 2-3 of 22 Conclusion Page 4 of 22 1.0 General Details 1.1 Test Laboratory Page 5 of 22 1.2 Applicant Details Page 5 of 22 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 6 of 22 Description of EUT operation 1.4 Date of Order Page 6 of 22 1.5 Submitted Sample Page 6 of 22 1.6 Test Duration Page 6 of 22 1.7 Country of Origin Page 6 of 22 1.8 Additional Information of EUT Page 7 of 22 2.0 Technical Details 2.1 Investigations Requested Page 8 of 22 2.2 Test Standards and Results Summary Page 8 of 22 3.0 Test Results 3.1 Emission Page 9-13 of 22 3.2 Bandwidth Measurement Page 14-15 of 22 Date: 2003-11-07 TEST REPORT Page 3 of 22 No.: HM111839 Appendix A List of Measurement Equipment Page 16 of 22 Appendix B Duty Cycle Correction During 100 msec Page 17-18 of 22 Appendix C Periodic Operation Page 19-20 of 22 Appendix D Photographs Page 21-22 of 22 Date: 2003-11-07 TEST REPORT Page 4 of 22 No.: HM111839 CONCLUSION The submitted product was deemed to have 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. Verified by Ivan Toa Patrick Wong for Chief Executive Date: 2003-11-07 TEST REPORT Page 5 of 22 No.: HM111839 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 EWIG INDUSTRIES CO., LTD. 13/F., Houtex Ind’l Bldg., 16 Hung To Road, Kwun Tong, Kowloon, Hong Kong. HKSTC Code Number for Applicant EWI001 Manufacturer Q & S MANUFACTURING CO., LTD. Yin Shan Industrial District, Fu Gang Village, Xiang Mang West Road, Qing Xi Town, Dongguan City, Guang Dong Province, China Date: 2003-11-07 TEST REPORT Page 6 of 22 No.: HM111839 1.3 Equipment Under Test [EUT] Description of Sample Product: Remote Thermo-Hygro Sensor Manufacturer: Q & S Manufacturing Co., Ltd. Brand Name: Ewig Model Number: 001H22 Input Voltage: 3Vd.c (“AAA” size battery x 2) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is an Ewig Industries Co., Ltd., Remote Thermo- Hygro Sensor. The transmitter is an automatic transmitter. The EUT is to transmit RF signal while temperature measurement is changed. The EUT is for data transmission, Modulation by Data Code. Tape is pulses modulation. 1.4 Date of Order 2003-10-03 1.5 Submitted Sample(s): 2 Samples per model 1.6 Test Duration 2003-10-31 1.7 Country of Origin China Date: 2003-11-07 TEST REPORT Page 7 of 22 No.: HM111839 1.8 Additional Information of EUT Submitted Not Available User Manual Part List Circuit Diagram Printed Circuit Board [PCB] Layout Block diagram FCC ID Label Date: 2003-11-07 TEST REPORT Page 8 of 22 No.: HM111839 2.0 Technical Details 2.1 Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4:2000 for FCC Certification. 2.2 Test Standards and Results Summary Tables EMISSION Results Summary Test Condition Test Requirement Test Method Class / Test Result Severity Pass Failed N/A Field Strength of Fundamental Emissions & Spurious Emissions FCC 47CFR 15.231e ANSI C63.4:2000 N/A Radiated Emissions, 30MHz to 1GHz FCC 47CFR 15.209 ANSI C63.4:2000 Class B Conducted Emissions on AC, 0.15MHz to 30MHz FCC 47CFR 15.207 ANSI C63.4:2000 Class B Note: N/A - Not Applicable Date: 2003-11-07 TEST REPORT Page 9 of 22 No.: HM111839 3.0 Test Results 3.1 Emission 3.1.1 Radiated Emissions Test Requirement: FCC 47CFR 15.231e Test Method: ANSI C63.4:2000 Test Date: 2003-10-31 Mode of Operation: On mode Test Method: The sample was placed 0.8m above the ground plane on the OATS *. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigate all operating modes, rotated about all 3 axis (X, Y & Z) to obtain worst position, manipulating interconnecting cables, rotating turntable, varying antenna height from 1m to 4m in both horizontal and vertical polarization. The emissions worst-case are shown in Test Results of the following pages. *: OATS [Open Area Test Site] located at HKSTC with a metal ground plane on filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 90657. Test Setup: EUT distance = 3m Pre -Amplifier Receiver Turn Table Computer Ground plane Date: 2003-11-07 TEST REPORT Page 10 of 22 No.: HM111839 Limits for Field Strength of Fundamental Emissions [FCC 47CFR 15.231e]: Frequency Range of Fundamental Field Strength of Fundamental Emission [Peak] Field Strength of Fundamental Emission [Average] [MHz] [μV/m] [μV/m] 40.66-40.70 1,000 100 70-130 500 50 130-174 500 to 1,500 * 50 to 150 * 174-260 1,500 150 260-470 1,500 to 5,000 * 150 to 500 * Above 470 5,000 500 Where F is the frequency in MHz, the formula for calculating the maximum permitted fundamental field strengths are as follows: for the band 130-174 MHz, μ V/m at meters=22.72727(F)-2454.545; for the band 260-470 MHz, μV/m at 3 meters =16.6667(F)-2833.3333. The maximum permissible unwanted emission level is 20dB below the maximum fundamental level. Results: CorrectionLimitAntenna Factor @3mPolarity dB μ V/m μ V/m 433.9059.220.579.79660.543,983.5Vertical 867.8018.429.147.5237.14,398.3Vertical μ V/m Field Strength of Fundamental Emissions Peak Value Frequency Level @3m Field Strength MHz dB μ V/m Field Stre…

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TEST SET UP PHOTOGRAPH OF THE PRODUCT MEASUREMENT OF RADIATED EMISSION TEST SET UP