L5CW026-HRemote Sensor

RF Wireless Transmitter Instructions Manual Thank you for purchasing the new generation RF Wireless Thermometer. Designed and engineered with the state-of-art technology and components, this instrument will provide accurate and convenient measurement of indoor and outdoor temperatures. Read this manual carefully to full explore the features and functions of the new product. Name and Functions of Buttons: CH Select Channel 1,2 & 3 of the transmitter. C/F C/ F selection Tx Trigger manual transmittion BATTERY INSTALLATION Lift off the bracket stand, loose the 2 screws with a small screwdriver. Select channel for each transmitter, and then insert 2 pcs AA batteries according to the polarity indicated. After selecting the desired setting, replace the cover and tighten the 2 screws. SETTING UP THE WIRELESS CONNECTION: • For the first installation, always insert batteries to the home unit and then the remote sensor. The flash of outdoor temperature on the home unit means the seeking the connection with the transmittor. Install batteries of transmitter in this moment for registration. • Always set the first sensor to CH 1. Maximum three sensors can be registered. • To verify transmission, press the Tx button of the remote sensor. The red LED on the remote sensor will flash when it transmit a signal. Temperature of the remote sensor will be updated and displayed on the remote sensor. • When replacing batteries for the remote sensor, remember to clear the corresponding channel of the home unit in this way: Select the respective channel by pressing the CHANNEL button on home unit, then hold the CHANNEL button 3 seconds to clear the registration. LOW BATTERY INDICATION Low battery indication is available for the transmitters. When the low battery indicator is shown on the display of transmitter or the outdoor display of the home unit, replace the batteries of the corresponding transmitter and follow the setup procedure as mentioned in this instruction manual. SPECIFICATIONS Range of temperature measurement: -20 C to 60 C (14F to 158F), lowest -50 C (-58F) using extension cord Transmission : Max. 30M (100 ft.) open area, RF434 MHz Resolution : 0.1 degree for temperature Battery life : 1 year (alkaline batteries recommended) 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. Modifications not authorized by the manufacturer may void users authority to operate this device.

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

TM °F/°C 1 2 3 CHANNEL L5CW026-H W026 TM °F/°C 1 2 3 CHANNEL L5CW026-H W026-H

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

FCC ID: L5CW026-H Circuit Description The 433MHz crystal oscillator drives the base of Q2 the final/buffer amplifier. The modulation provided by IC. The output of Q2 has the matching network consisting of C8 and C9 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 3Volt (“AA” size battery x 2) primary battery

Date: 2003-12-04 TEST REPORT Page 1 of 23 No.: HM112170 FCC PART 15 SUBPART C CERTIFICATION REPORT FOR LOW POWER TRANSMITTER TEST REPORT No.: HM112170 Equipment Under Test [EUT]: Remote Sensor Model Number: W026 Applicant: Ansen Electronics Company FCC ID : L5CW026-H Date: 2003-12-04 TEST REPORT Page 2 of 23 No.: HM112170 CONTENT: Cover Page 1 of 23 Content Page 2-3 of 23 Conclusion Page 4 of 23 1.0 General Details 1.1 Test Laboratory Page 5 of 23 1.2 Applicant Details Page 5 of 23 Applicant HKSTC Code Number for Applicant Manufacturer 1.3 Equipment Under Test [EUT] Page 6 of 23 Description of EUT operation 1.4 Date of Order Page 6 of 23 1.5 Submitted Sample Page 6 of 23 1.6 Test Duration Page 6 of 23 1.7 Country of Origin Page 6 of 23 1.8 Additional Information of EUT Page 7 of 23 2.0 Technical Details 2.1 Investigations Requested Page 8 of 23 2.2 Test Standards and Results Summary Page 8 of 23 3.0 Test Results 3.1 Emission Page 9-14 of 23 3.2 Bandwidth Measurement Page 15-16 of 23 Date: 2003-12-04 TEST REPORT Page 3 of 23 No.: HM112170 Appendix A List of Measurement Equipment Page 17 of 23 Appendix B Duty Cycle Correction During 100 msec Page 18-19 of 23 Appendix C Periodic Operation Page 20-21 of 23 Appendix D Photographs Page 23-23 of 23 Date: 2003-12-04 TEST REPORT Page 4 of 23 No.: HM112170 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: 2003-12-04 TEST REPORT Page 5 of 23 No.: HM112170 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 Ansen Electronics Company Rm 73-78, 2/F., Sino Industrial Plaza, 9 Kai Cheung Road, Kowloon Bay, Kowloon, Hong Kong. HKSTC Code Number for Applicant ANE001 Manufacturer Ansen Electronics Company Chen Tung Industrial Zone, Ning Tau Administrative District, Qiao Tau Zhen, Dongguan, Guangdong, Cina. Date: 2003-12-04 TEST REPORT Page 6 of 23 No.: HM112170 1.3 Equipment Under Test [EUT] Description of Sample Product: Remote Sensor Manufacturer: Ansen Electronics Company Brand Name: Ansen Model Number: W026 Input Voltage: 3Vd.c (“AA” size battery x 2) 1.3.1 Description of EUT Operation The Equipment Under Test (EUT) is an Ansen Electronics Company., Remote 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 2003-11-18 1.5 Submitted Sample(s): 1 Sample per model 1.6 Test Duration 2003-11-27 1.7 Country of Origin China Date: 2003-12-04 TEST REPORT Page 7 of 23 No.: HM112170 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: 2003-12-04 TEST REPORT Page 8 of 23 No.: HM112170 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: 2003-12-04 TEST REPORT Page 9 of 23 No.: HM112170 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: 2003-11-27 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: 2003-12-04 TEST REPORT Page 10 of 23 No.: HM112170 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] [ μ V/m] [ μ V/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 μV/mμV/m 433.8062.820.483.214454.443,966.8Horizontal Field Strength Measured dB μ V/m μ V/m Field Strength of Fundamental Emissions Peak Value Frequency Level @3m Field Strength MHz dB μ V/m CorrectionLimit **Antenna Factor @3mPolarity dB μ V/m μ V/m *433.8045.…

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Chris Harvey EMC From: Chris Harvey EMC [[email protected]] Sent: Wednesday, December 10, 2003 10:13 PM To: [email protected] Cc: [email protected]; [email protected] Subject: Ansen application FCC ID L5CW026-H MT#14813 Page 1 of 1 12/10/2003 Alice, I have one question about the operation which may require additional testing. The Schematic and Users manual (and photo) indicate that this device can operate on 1 of 3 channels. However, there is no information about the frequencies of operation of each channel. If the ban of operation is greater than 1MHz, then FCC 15.31 (m) requires testing more channels. Please provide the frequency for each of the available channels of this device, as well as any other information that may be required if the frequencies of operation is a span wider than 1MHz. Best regards, Chris Harvey Chris Harvey EMC Consultants, LLC cell 443-622-3300

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