VYY1522A01Fifteen-channel Transmitter

FCC STATEMENT 1. 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. (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance c ould void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits fo r 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 determine d by turning the equipment off and on, the user is encouraged to try to c orrect 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. RF warning statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. -English: This device complies with Industry Canada RSS standard(s). 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. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. -French: Leprésent appareil est conforme aux CNR d'Industrie Canada applicable aux appareils radio Exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, meme si le brouillage est susceptible d'en compromettre le fonctionnement." Setting button (P2) Down buttonStop buttonUp button DD1520 Single-channel emitter Bidirectional modeUnidirection mode Factory default is bidirectional mode, repeated operation can be cyclical switching. Hold down P2 to load battery Emitterwithoutbattery Shows “ ” Shows “ ” ᰷ Factory default is the combination button unlock status, repeated operation can be cycle switching. ᰸ The combination button is locked, the combination button is invalid, and the combination button is pressedwithout sending code, and there is no icon display; in the unlock state,the combination button is pressed with an icon flashing indication; ᰹ The combination button is locked and only affects the emitter code. Switch to the combination button lock statusSwitch to the combination button unlock status Long press stopbutton 15s above Shows “ ”Shows “ ” (P1+button+P1-button) × 1 Press P1+button andP1- button at thesame time, hold on Press P1+button or P1-button, selecting the channel (channl1 to channel 15) you need Stop button × 1 ᰷ In the setting state, press the up or down button you can quit quickly; ᰸ if you want to change the valid channels, reset it. The screen will show C The screen will show 15 The screen will show 0 Settingis ok OK Setting button (P2) Down buttonStop buttonUp button Battery Channel descending button (P1-) Channelincreasingbutton(P1+) DD1522 15-channel LCD emitter Back DD1520 DD1522 Emitter  Specification Version NO. : A/02 Type specification Technical support ᰷ Factory default is the combination button unlock status, repeated operation can be cycle switching. ᰸ The combination button is locked, the combination button is invalid, and the combination button ispressed without sending code. ᰹ The combination button is locked and only affects the emitter code. Switch to the combination button lock statusSwitch to the combination button unlock status Long press stopbutton 15s above LED flashes × 2 LED flashes × 1 Technical support Technical support Input voltage ᱶ 3V (AAA battery × 2 ) Transmitting frequency ᱶ 433.925MHzTransmitting power ᱶ 10 Milliwatt Operating temperature ᱶ -5 ᯦ ~ 50 ᯦ Transmssion distance ᱶ 35 meters Function instruction Technical specification DD1520 is single-channel emitter. DD1522 is 15-channel LCD emitter, one number of LCD screen means one control channel. Press channel descending button (P1- ) or channelincreasing button(P1+) to change the channel. On the analogy of this, loose finger whenthe indicator light move to suitable channel that you select effective channel. If LCDscreen number show “0” that means all channels if effective (group control state). Underthe bidirectional mode, hold down a button for more than 5 seconds, and the wirelessstop launch; Long press the up button or down button for more than 5 seconds, and thenrelease, will sending loose button commands. When the voltage is less than 2.6V, therewill be a low voltage indication. Notice: Emitter couldn’t be exposed to moisture and striked, so as not to affect life. When you use emitter, if found emission distance obviously short or less sensitive, please change another same newbattery. Please have batteries for recycling.Caution ᱶ Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions. Additionalfunction The valid channels selection of DD1522 Unidirection / bidirectional mode switching of DD1522 Additionalfunction Combination button lock/ unlock status of DD1520 Additionalfunc…

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Date (11/28/2019) TUV SUD BABT TCB Octagon House, Segensworth Road, Fareham, Hampshire, P015 .5RL Confidentiality Request FCC ID: VYY1522A01 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission's Rules, NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. hereby requests permanent confidential treatment of information accompanying this application as outlined below: Schematics Bill of Materials/Parts List Block Diagrams Theory of Operation NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of (180) days: Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer/Name: MANAGER / Xiao fang Liao Telephone Number: +86-574-86571666 Extension: Email: [email protected]

EMC_SZ_FR_20.00 E-I Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd.Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 3 EMC_SZ_FR_20.00 E-I Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd.Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 3 EMC_SZ_FR_20.00 E-I Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd.Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 3

902-750-05 A-00 2017.7.10 0.5# 亚银 常规油墨 白底黑字 902-750-05 902# C 0;M 0;Y 0;K 100; 覆哑膜 贴小包 贴产品 校对 设计 适用产品 尺 寸 材 质 油 墨 印刷工艺 是否含流水码 或条形码 审定 版本 日期 制图 是否覆膜 颜 色 使用规范 备注: 工艺描述 客户号 杜亚机电 铭牌 JS-6-15 0.1±0.01mm（厚度）30x20mm（长*宽） DD2700H 英文 图纸认证说明 (此尺寸为本图内1:1尺寸) 5.2 mm 7.274mm 7.2 mm 5.076 mm DD1522 FCC ID：VYY1522A01 IC：21396-1522A01

Label Location

EMC_SZ_FR_20.00 E-I Release 2014-03-20 TÜV SÜD Certification and Testing (China)Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 2 EMC_SZ_FR_20.00 E-I Release 2014-03-20 TÜV SÜD Certification and Testing (China)Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 2 RF Antenna

Report Number: 68.910.16.048.01A TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 RF exposure Estimation for DD1522 Introduction DD1522 (FCC ID: VYY1522A01) is a Fifteen-Channel Transmitter operating at 433.92 MHz. 1.Limit and Guidelines on Exposure to Electromagnetic Fields According to 4.3 General SAR test exclusion guidance of KDB 447498 RF Exposure, no SAR required if power is lower than the flowing threshold: The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation25 • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.3 is applied to determine SAR test exclusion. 2.Calculation method [(max. power of` channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 According to ANSI C63.10-2013 (9.5 Equations to calculate EIRP), Report Number: 68.910.16.048.01A TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 For 433.92 MHz. Field Strength (EMeas):64.20 (dBuV/m) (f=433.92 MHz) MeasurementDistance(dMeas):3 (m) Equivalent Isotropically Radiated Power(EIRP):0.0008(mW) Radiated Power + tune up tolerance = 0.0008mW Distance = 5 mm f = 433.92MHz [0.0008/5] * SQRT (0.43392) =0.0001 0.0001 ≤ 3.0 Therefore, excluded from SAR testing. TUV SUD China, Shenzhen Branch Reviewed by: Prepared By: John Zhi/ EMC Project Manager Mark Chen/EMC Project Engineer Date: 2019-12-30 Date: 2019-12-30

Report Number: 68.910.16.048.01 EMC_SZ_FR_21.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 15 FCC/IC- TEST REPORT Report Number:68.910.16.048.01Date of Issue:December 30, 2019 Model:DD1522 Product Type: Fifteen-Channel Transmitter Applicant:NINGBO DOOYA MECHANIC & ELECTRONIC TECHNOLOGY CO., LTD. Address:No.168 Shengguang Road, Luotuo, Zhenhai, Ningbo, ZHEJIANG, China Production Facility: Ningbo Dooya Mechanic & Electronic Technology Co., Ltd. Address: No.168 Shengguang Road, Luotuo, Zhenhai, Ningbo, Zhejiang province, P.R. China 315202 Test Result:nPositiveoNegative Total pages including Appendices: 15 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch is a subcontractor to TÜV SÜD Product Service GmbH according to the principles outlined in ISO 17025. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch reports apply only to the specific samples tested under stated test conditions. Construction of the actual test samples has been documented. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. The manufacturer/importer is responsible to the Competent Authorities in Europe for any modifications made to the production units which result in non-compliance to the relevant regulations. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch shall have no liability for any deductions, inferences or generalizations drawn by the client or others from TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch issued reports. This report is the confidential property of the client. As a mutual protection to our clients, the public and ourselves, extracts from the test report shall not be reproduced except in full without our written approval Report Number: 68.910.16.048.01 EMC_SZ_FR_21.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 15 1 Table of Contents 1Table of Contents ........................................................................................................................................................... 2 2Details about the Test Laboratory.................................................................................................................................... 3 3Description of the Equipment Under Test ........................................................................................................................ 4 4Summary of Test Standards ............................................................................................................................................ 5 5Summary of Test Results ................................................................................................................................................ 6 6General Remarks ............................................................................................................................................................ 7 7Systems test configuration .............................................................................................................................................. 8 8Test Setups ..................................................................................................................................................................... 9 9Test Methodology......................................................................................................................................................... 10 9.1Radiated Emission ................................................................................................................................................ 10 9.2Bandwidth Measurement ...................................................................................................................................... 12 9.3Deactivation Time ................................................................................................................................................ 13 10Test Equipment List...................................................................................................................................................... 14 11System Measurement Uncertainty ................................................................................................................................. 15 Report Number: 68.910.16.048.01 EMC_SZ_FR_21.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 15 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China FCC Registration Number: 514049 IC Registration Number: 10320A Telephone:86 755 8828 6998 Fax:86 755 8828 5299 Report Number: 68.910.16.048.01 EMC_SZ_FR_21.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 4 of 15 3 Description of the Equipment Under Test Product:Fifteen-Channel Transmitter Model no./HVIN/PMN:DD1522 FCC ID:VYY1522A01 IC:2139…

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Radiated Emission Test below 1GHz Radiated Emission Test above 1GHz Test setup photos