Q6WBSE0001Tire Pressure Monitoring System

Guangdong Steelmate Security Co., Ltd Date: 8 March, 2012 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: Guangdong Steelmate Security Co., Ltd FCC ID: Q6WBSE0001 FCC Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. Guangdong Steelmate Security Co., Ltd requests that the following documents regarding this submission for FCC ID: Q6WBSE0001 be kept confidential: Exhibit Type File Name Block Diagram CONF APPENDIX Q6WBSE0001_Block Diagram.pdf Schematics CONF APPENDIX Q6WBSE0001 _Schematics.pdf Operational Description CONF APPENDIX Q6WBSE0001 _Operational Description.pdf Part list CONF APPENDIX Q6WBSE0001 _BOM.pdf Those documents contain detailed system and equipment description and related information about the product which Guangdong Steelmate Security Co., Ltd considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, Guangdong Steelmate Security Co., Ltd 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. Yours Sincerely, Name: Tommy Zhang Position: Manager Company: Guangdong Steelmate Security Co., Ltd

Guangdong Steelmate Security Co., Ltd Date: 8 March, 2012 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The Guangdong Steelmate Security Co., Ltd， the undersigned, hereby authorizes Mr.Wu Xuewen from Shenzhen Morlab Communications Technology Co., Ltd., to act on the behalf of the Guangdong Steelmate Security Co., Ltd solely in matters relating to the application for an FCC equipment authorization for FCC ID Q6WBSE0001 including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen Morlab Communications Technology Co., Ltd. on our behalf of the Guangdong Steelmate Security Co., Ltd in connection with the Application shall have the same effect as acts of the Guangdong Steelmate Security Co., Ltd The Guangdong Steelmate Security Co., Ltd also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Thank you for your attention to this matter. Yours Sincerely, Name: Tommy Zhang Position: Manager Company: Guangdong Steelmate Security Co., Ltd

External Photos of TPMS

FCC ID: Q6WBSE0001 Label Label Location

Internal Photos of TPMS

Report No.: SZ11120131E01 Page 2 of 21 TABLE OF CONTENTS 1. GENERAL INFORMATION .................................................................................................... 4 1.1 EUT Description ......................................................................................................................... 4 1.2 Test Standards and Results ........................................................................................................ 5 1.3 Test Equipments Used ................................................................................................................ 5 1.4 Facilities and Accreditations ...................................................................................................... 6 1.4.1 Facilities .................................................................................................................................... 6 1.4.2 Test Environment Conditions .................................................................................................... 6 1.4.3 Measurement Uncertainty ......................................................................................................... 6 2. 47 CFR PART 15C REQUIREMENTS .................................................................................... 7 2.1 FCC 15.203 Antenna requirement ......................................................................................... 7 2.1.1 Applicable Standard .................................................................................................................. 7 2.2 FCC 15.231(a)(1) Manually Activated Transmitter ............................................................. 8 2.2.1 Applicable Standard .................................................................................................................. 8 2.2.2 Test Setup .................................................................................................................................. 8 2.2.3 Summary of Test results ............................................................................................................ 8 2.2.4 Test plots ................................................................................................................................... 9 2.3 FCC 15.231(a)(3) Periodic Transmissions ........................................................................... 10 2.3.1 Applicable Standard ................................................................................................................ 10 2.3.2 Test Setup ................................................................................................................................ 10 2.3.3 Summary of Test results .......................................................................................................... 10 2.3.4 Test plots ................................................................................................................................. 11 2.4 FCC 15.231(a)(4) Alarm Condition Mode Description ...................................................... 12 2.4.1 Applicable Standard ................................................................................................................ 12 2.4.2 Alarm Condition Mode plots .................................................................................................. 12 2.5 FCC 15.231(c) 20dB Bandwidth Testing .............................................................................. 14 2.5.1 Applicable Standard ................................................................................................................ 14 2.5.2 Test Setup ................................................................................................................................ 14 2.5.3 Summary of Test results .......................................................................................................... 14 2.5.4 20dB Bandwidth Plot .............................................................................................................. 15 2.6 FCC 205, 209, 231(b) Radiated Emission ............................................................................ 16 2.6.1 Standard Applicable ................................................................................................................ 16 Report No.: SZ11120131E01 Page 3 of 21 2.6.2 Test Setup ................................................................................................................................ 17 2.6.3 Summary of test Results and Plots .......................................................................................... 18 Issue Date Reason for change 1.0 May 2, 2012 First edition Report No.: SZ11120131E01 Page 4 of 21 1. GENERAL INFORMATION 1.1 EUT Description EUT Type ........................TPMS Serial No. ........................(n.a., marked #1 by test site) Hardware Version ........... .N/A Software Version ............. Applicant ......................... Manufacturer ................... N/A GUANGDONG STEELMATE SECURITY CO.,LTD. Renan Street, Dongfu Road, Dongfeng Town, Zhongshan, 528425 China GUANGDONG STEELMATE SECURITY CO., LTD. Renan Street, Dongfu Road, Dongfeng Town, Zhongshan, 528425 China Modulation Type ............ .FSK Working Frequency .........433.92MHz Working Voltage ............. .2.2-3.6V Note 1: The Pressure Monitoring System is a wireless RF sensing device designed to measure and display the tire pressure and temperature. The sensor was a part of the system and tested as the EUT in this report. Note 2: The EUT has three different model name: TP-81, TP-82 and TP-12, and all of them point the same sample. Note 3: For a more detailed description, please refer to Specification or User’s Manual supplied by the applicant and/or manufacturer. Report No.: SZ11120131E01 Page 5 of 21 1.2 Test Standards and Results The objective of the report is to perform testing according to 47 CFR Part 15 Subpart C for the EUT FCC ID Certification: No. Identity…

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Test Setup Photo