2ABC3-RN300Wireless Temperature Humidity Sensor

×ÜæîßÞÝíóÎÒíðð CAUTION : Changes or modifications not expressly approved by the manufacturer responsible for compliance could void the user’s authority to operate the equipment. FCC RF Exposure Requirements: The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

Rev 11/20/07 #303 465-1 Gimryangjang-dong Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel No : +82-70-7529-4359 Fax No : +82-505-115-0009 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2ABC3-RN300 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 Type File Name Block Diagram Schematics Parts List Operational description Block Diagram(RN300).pdf Schematics(RN300).pdf Part List(RN300).pdf Operational Description(RN300).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, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name - - Sincerely, Lee Mokhan / SW Engineer Dekist Co.,Ltd

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com EUT External Photographs CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Antenna

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Label Photographs

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com EUT Internal Photographs CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Page 1 of 2 RF EXPOSURE EVALUATION Applicant : Dekist Co.,Ltd Applicant Address : #303 465-1 Gimryangjang-dong Cheoin- gu, Yongin-si, Gyeonggi-do, Korea Kind of Product : Wireless Temperature Humidity Sensor Equipment model name : RN300 Antenna type : Chip antenna Gain : 2.5 dBi Frequency Range : 2405 – 2475 MHz Number of channels : 15 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Page 2 of 2 ** MPE Calculations ** The EUT will only be used with a separation of 20 centimeters or greater between the antenna and the body of the user. The MPE calculation for this exposure is shown below. The peak radiated output power (EIRP) is calculated as follows: EIRP = P + G EIRP = 0.69 + 2.5 = 0.87 dBm Where, P = Power input to the antenna (mW) G = Power gain of the antenna (dBi) The numeric gain(G) of the antenna with a gain specified in dB is determined by: G = Log -1 (dB antenna gain / 10) G = Log -1 (2.5 / 10) G = 1.778 Power density at the specific separation: S = PG/(4R 2 π) S = (0.69 * 1.778)/(4 * 20 2 * π) S =0.0002 mW/cm 2 Where, S = Maximum power density (mW/cm 2 ) P = Power input to the antenna (mW) G = Numeric power gain of the antenna R = Distance to the center of the radiation of the antenna (20cm = limit for MPE) The Maximum permissible exposure (MPE) for the general population is 1 mW/cm 2 . The power density at 20cm does not exceed the 1 mW/cm 2 limit. Estimated safe separation: R = √(PG / 4π) R = √(0.69 * 1.778 / 4π) R = 0.31 cm Where, P = Power input to the antenna (mW) G = Numeric power gain of the antenna R = Distance to the center of the radiation of the antenna (20cm = limit for MPE)

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2013-01842 Date: 2013-12-11 Page 1 of 32 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15 Subpart C(Rev.2) TEST REPORT For FCC Test Report No. : CTK-2013-01842 Date of Issue : 2013-12-11 FCC ID : 2ABC3-RN300 Model/Type No. : RN300 Kind of Product : Wireless Temperature Humidity Sensor Applicant : Dekist Co.,Ltd Applicant Address : #303 465-1 Gimryangjang-dong Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Manufacturer : Dekist Co.,Ltd Manufacturer Address : #303 465-1 Gimryangjang-dong Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Contact Person : Lee Mokhan / SW Engineer Telephone : +82-70-7529-4359 Received Date : 2013-11-20 Test period : Start : 2013-11-20 End : 2013-12-09 The test results presented in this report relate only to the object tested. Tested by Reviewed by Won-Jae, Hwang Test Engineer Young-Joon, Park Technical Manager Date: 2013-12-11 Date: 2013-12-11 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2013-01842 Date: 2013-12-11 Page 2 of 32 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15 Subpart C(Rev.2) REPORT REVISION HISTORY Date Revision Page No 2013-12-11 Issued (CTK-2013-01842) All This report shall not be reproduced except in full, without the written approval of CTK Co., Ltd. This document may be altered or revised by CTK Co., Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by CTK Co., Ltd. will constitute fraud and shall nullify the document. CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2013-01842 Date: 2013-12-11 Page 3 of 32 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15 Subpart C(Rev.2) TABLE OF CONTENTS REPORT REVISION HISTORY...........................................................................................2 1.0 General Product Description................................................................................4 1.1 Tested Frequency...............................................................................................4 1.2 Device Modifications...........................................................................................5 1.3 Peripheral Devices.............................................................................................5 1.4 Calibration Details of Equipment Used for Measurement.........................................5 1.5 Test Facility.......................................................................................................5 1.6 Laboratory Accreditations and Listings..................................................................6 2 Summary of tests....................................................................................................7 2.1 Technical Characteristic Test......................................................................................8 2.1.1 6dB Bandwidth............................................................................................8 2.1.2 Maximum peak Conducted Output Power......................................................11 2.1.3 Power Spectral Density...............................................................................14 2.1.4 Band - edge..............................................................................................17 2.1.5 Field Strength of Emissions.........................................................................22 2.1.6 AC Conducted Emissions.............................................................................29 APPENDIX A – Test Equipment Used For Tests.................................................................32 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2013-01842 Date: 2013-12-11 Page 4 of 32 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15 Subpart C(Rev.2) 1.0 General Product Description Equipment model name RN300 Serial number Prototype EUT condition Pre-production, not damaged Frequency Range 2405 MHz – 2475 MHz RF output power -1.63 dBm Number of channels 15 Transfer Rate 250 Kbps Type of Modulation DSSS Channel Spacing 5 MHz Duty cycle TX power 1.0 Power Source 3 Vdc, 6 Vdc Antenna Type PCB antenna Gain : 2.5 dBi 1.1 Tested Frequency LOW MID HIGH Frequency (MHz) 2405 2440 2475 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2013-01842 Date: 2013-12-11 Page 5 of 32 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15 Subpart C(Rev.2) 1.2 Device Modifications The following modifications were necessary for compliance: Not applicable 1.3 Peripheral Devices Device Manufacturer Model No. Serial No. Note Computer DELL INC. Inspiron 6400 - Switching Adapter2 DDongguang Lite Power 2nd Plant LA65NS0-00 - AC/DC Adapter DAEYOU Electronic Co.,Ltd DY-0610 - 1.4 Calibration Details of Equipment Used for Measurement Test equipment and test accessories are calibrated on regular basis. The maximum time between calibrations is one year or what is recommended by the manufacturer, whichever is less. All test equipment calibrations are traceable to the Korea Research Institute of Standards and Science (KRISS), therefore, all test data recorded in this report is traceable to KRISS. 1.5 Test Facility The measurement facility is loca…

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CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Setup Photos and Configuration Radiated Electric Field Emissions (9 kHz ~ 30 MHz)_Battery CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com (9 kHz ~ 30 MHz)_DC 6 V CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com (30 MHz ~ 1000 MHz)_Battery CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com (30 MHz ~ 1000 MHz)_DC 6 V CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com (above 1 GHz)_Battery CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com (above 1 GHz)_DC 6 V CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Conducted Voltage Emissions