Q6WBSE083TIRE PRESSURE MONITOR SYSTEM

FCC Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

GUANGDONG STEELMATE SECURITY CO., LTD. Renan Street, Dongfu Road, Dongfeng Town, Zhongshan, 528425, China --------------------------------------------------------------------------------------------------------------------- June 6, 2012 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: Q6WBSE083 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit TypeFile Name Block Diagram Q6WBSE083_FCC_BlcokDiagram.pdf Schematic Diagram Q6WBSE083_FCC_SchematicDiagram.pdf Circuit Description Q6WBSE083_FCC_OperationalDescription.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, we are aware that the exhibits listed above have publicly available since 04/01/2011 the date the grant was issued. Yours Sincerely, GUANGDONG STEELMATE SECURITY CO., LTD.

GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2

GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 EXHIBIT 1- PRODUCT LABELING Proposed FCC ID Label Format FCC ID: Q6WBSE083 Specifications : Text is Black in color and justified. Labels are printed in indelible ink on permanent adhesive silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT FCC ID Label Location

GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 EXHIBIT 1- PRODUCT LABELING Proposed FCC ID Label Format FCC ID: Q6WBSE083 Specifications : Text is Black in color and justified. Labels are printed in indelible ink on permanent adhesive silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT FCC ID Label Location

GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View Solder Board-Component View 1 GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 Solder Board-Component View 2

GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 FCC Part 15C Measurement and Test Report For GUANGDONG STEELMATE SECURITY CO., LTD. Renan Street, Dongfu Road, Dongfeng Town, Zhongshan, 528425, China FCC ID: Q6WBSE083 FCC Rules: FCC Part 15.231 Product Description: Tire Pressure Monitor System Tested Model: TP-70 Report No.: STR12058367I Tested Date: 2012-06-01 to 2012-06-08 Issued Date: 2012-06-14 Tested By: Susan Su / Engineer Reviewed By: Lahm Peng / EMC Manager Approved & Authorized By: Jandy so / PSQ Manager Prepared By: SEM.Test Compliance Service Co., Ltd 3/F, Jinbao Commerce Building, Xin'an Fanshen Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by SEM.Test Compliance Service Co., Ltd REPORT NO.: STR12058367I PAGE 1 OF 19 FCC PART 15.231 GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)...............................................................................3 1.2 TEST STANDARDS...................................................................................................................................................4 1.3 TEST METHODOLOGY.............................................................................................................................................4 1.4 TEST FACILITY.......................................................................................................................................................4 1.5 EUT SETUP AND TEST MODE.................................................................................................................................5 2. SUMMARY OF TEST RESULTS ...........................................................................................................................6 3. ANTENNA REQUIREMENT ..................................................................................................................................7 3.1 STANDARD APPLICABLE.........................................................................................................................................7 3.2 TEST RESULT..........................................................................................................................................................7 4. RADIATED EMISSIONS .........................................................................................................................................8 4.1 MEASUREMENT UNCERTAINTY..............................................................................................................................8 4.2 STANDARD APPLICABLE.........................................................................................................................................8 4.3 TEST EQUIPMENT LIST AND DETAILS.....................................................................................................................9 4.4 TEST PROCEDURE...................................................................................................................................................9 4.5 CORRECTED AMPLITUDE & MARGIN CALCULATION............................................................................................10 4.6 ENVIRONMENTAL CONDITIONS............................................................................................................................10 4.7 SUMMARY OF TEST RESULTS/PLOTS....................................................................................................................10 5. 20DB BANDWIDTH ...............................................................................................................................................13 5.1 STANDARD APPLICABLE.......................................................................................................................................13 5.2 TEST EQUIPMENT LIST AND DETAILS...................................................................................................................13 6.3 TEST PROCEDURE.................................................................................................................................................13 5.4 ENVIRONMENTAL CONDITIONS............................................................................................................................13 5.5 SUMMARY OF TEST RESULTS/PLOTS....................................................................................................................13 6. TRANSMISSION TIME.........................................................................................................................................15 6.1 STANDARD APPLICABLE.......................................................................................................................................15 6.2 TEST EQUIPMENT LIST AND DETAILS...................................................................................................................15 6.3 TEST PROCEDURE.................................................................................................................................................15 6.4 ENVIRONMENTAL CONDITIONS............................................................................................................................15 6.5 SUMMARY OF TEST RESULTS/PLOTS....................................................................................................................15 7. DUTY CYCLE .........................................................................................................................................................18 7.1 STANDARD APPLICABLE................................…

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GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Radiation Emission Test Setup (Below 30MHz) Radiation Emission Test Setup (30MHz to 1GHz) GUANGDONG STEELMATE SECURITY CO., LTD. Model: TP-70 REPORT NO.: STR12058367I FCC PART 15.231 Radiation Emission Test Setup (Above 1GHz)