2ATM74908YoLink Finger

User Guide YoLink Finger YS4908-UC SET UP DOWN Contents W·······················ARNING·············································1 Set Up YoLink Finger························································4 YoLinkControl ·····························································13 Maintaining the YoLink Finger···········································15 Using YoLink App with YoLink Finger····································11 Specifications·····························································7·1 Installation······························8······································ Troubleshooting····························································18 Introduction··················································2················ Features······································································3 Product Required·····························································1 Customer Service and Warranty········································19 WARNING To prevent severe injury to persons, 1 Do not let the children use YoLink Finger without adult supervision. Always wait until the garage door or gate to be completely closed. Product Required A YoLink Hub. The smartphone or tablet able to run iOS 9.0 or higher; Android 4.4 or higher. A Garage Door Opener. To gain full access, we suggest you to bind your YoLink Finger with a garage door sensor (Both YS7705-UC and YS7706-UC are suitable). Introduction YoLink Finger is used for garage door switch control without any wire connected. Stick the device tightly next to the garage door switch controller using double side tape. Add the device to YoLink App, remotely control the garage door switch controller to open or close your garage door anywhere, anytime. LED light can show you the current status. See the explanation below:s 2 SET UP DOWN DOWN BUTTON FINGER GREEN ONCE Open/Close the garage door. BLINKING GREEN Connecting to cloud. FAST BLINKING GREEN Paring with other devices (YoLink Control). FAST BLINKING RED Unparing with other devices (YoLink Control). BLINKING RED AND GREEN ALTERNATELY Factory resetting. SLOW BLINKING GREEN Updating. UP BUTTON SET BUTTON 3 Features Check Status Anywhere - Check device status. Easy to Control - CONVENIENTLY OPEN AND CLOSE your garage door with your mobile device anywhere, anytime. Long Range - Up to 1,000 Feet between Hub and device. Battery Status - Update surplus of battery power and send low battery alert. YoLink Control - Trigger an action of certain YoLink devices without internet. 4 Set Up YoLink Finger Follow the steps below to set up your YoLink Finger via YoLink App. Step 1: Set up YoLink App Get the YoLink App from the Apple App Store or Google Play. YoLink 5 If you don’t have a YoLink account, tap Sign up for an account and follow the steps to sign up an account. Open the App. Use your YoLink account to log in. Step 2: Log in or sign up with YoLink account 6 Step 3: Add YoLink Finger to YoLink App b. Room - Choose a room for your YoLink Finger. a. Name - Name your YoLink Finger. You can customize the name, set the room, add to/remove from favourite. Tap the “ ” in YoLink App. Scan the QR Code on the device. Tap the “Bind Device” to add the device to your YoLink account. c. Favourite - Click “ ” icon to add/remove from Favourite. SET UP DOWN a b c 7 Step 4: Connect YoLink Finger to the cloud Follow the Installation to install the device first. Press the SET button once, the LED light will blink green and your device will connect to the cloud automatically. Note Make sure your hub is connected to internet. Cloud Internet SET BUTTON SET UP DOWN 8 Installation Note Please add YoLink Finger and Garage Door Sensor 2 to YoLink App before you install them. Place the YoLink Finger close to the switch panel, use UP and DOWN button to adjust the finger, make sure it is at the right position to press down the switch button and open the garage door. YoLink Finger Peel off the surface on the double-side tape on the bottom of the YoLink Finger. Please dry clean the area first. Stick tightly the finger to the clean area. Adjust the position of the finger 1 SWITCH PANEL FINGER UP BUTTON DOWN BUTTON SET UP DOWN 9 Peel off the surface of the double-side tape 3 Stick tightly the YoLink Finger 4 Dry clean the area 2 You can also mount the YoLink Finger to the wall with screws. Mount YoLink Finger to the wall using provided screws. Please remove the battery cover and take out batteries after position adjusted. Reinstall the batteries and cover them. Reinstall the batteries and cover them 4 Mount the YoLink Finger 3 Remove the battery cover and take out batteries 2 SET UP DOWN SET UP DOWN SET UP DOWN SET UP DOWN 10 Installation Diagram (Partly) ABC S E T U P D O W N SET UP DOWN SET UP DOWN 11 Using YoLink App with YoLink Finger Note For better user experience, we suggest you to bind your YoLink Finger with a YoLink Garage Door Sensor. Tap the “Garage Door” in App to go to its controls. Tap Open/Close button to open or close your the garage door. Display the real-time battery status and signal Intensity of your YoLink Finger. Control 12 Details a. Name - Name your YoLink Finger. b. Room - Choose a room for your garage door device. You can customize the name, set the room, add to/ remove from favourite, check device history, set pairing with sensor. d. History - Check the history log for the garage door. c. Favourite - Click Add/Remove the device from Favourite. Tap the icon for each of the setting you want to personalize. f. Delete - Current device will be removed from your account. e. Sensor - Tap to pair or disable pairing with a garage door sensor. Tap “ ” icon at the top-right corner.the Tap the “Garage Door” in App to go to its controls. a b c d e f 13 YoLink Control YoLink Control is our unique “device to device” control technology. Under YoLink Control, the devices can be controlled without internet or Hub. You will need to set it up physically. Devices which send out command is called…

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YoSmart Inc. Agent Authorization Company: YoSmart Inc. Address: 17165 Von Karman Avenue, Suite 105, Irvine CA, 92614, USA Product Name: YoLink Finger Model Number(s ): YS4908-UC, YS4908-UA Product Description: YoLink Finger We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020/03/02 Name: Xu Manxiang Title: Manager Company: YoSmart Inc.

YoSmart Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020/03/02 Subject; Request for Confidentiality FCC ID: 2ATM74908 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Xu Manxiang Title: Manager

YoSmart Inc. Model Difference 2020-03-03 EUT NAME: YoLink Finger FCC ID: 2ATM74908 MODEL : YS4908-UC, YS4908-UA All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature Client’s name / title : Manxiang(N/A) Contact information / address: 17165 Von Karman Avenue, Suite 105, Irvine CA, 92614, USA

External Photos

Label & label location

Internal Photos Antenna

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2ATM74908 Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna, R=0.2m TEST RESULTS Max Output Power (dBuV/m ) Max Output power (dBm) Toleranc e Max Tune-UP power (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW/ cm2) Result 910.3 92.06 -7.84 ±1 0.2070 1.259 (1dBi) 0.00005 0.607 Pass

Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E FCC Part 15C Test Report FCC ID: 2ATM74908 Product Name: YoLink Finger Trademark: N/A Model Name : YS4908-UC YS4908-UA Prepared For : YoSmart Inc. Address : 17165 Von Karman Avenue, Suite 105, Irvine CA, 92614, USA Prepared By : Shenzhen BCTC Testing Co., Ltd. Address : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao'an District, Shenzhen, China Test Date: Jan. 20, 2020 – Feb. 20, 2020 Date of Report : Feb. 20, 2020 Report No.: BCTC2002000005E Te s t Report Tel: 400-788-9558 Web: https://www.bctc-l ab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 1 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E TEST RESULT CERTIFICATION Applicant’s name ................. : YoSmart Inc. Address ................................. : 17165 Von Karman Avenue, Suite 105, Irvine CA, 92614, USA Manufacture's Name ............ : YoSmart Inc. Address ................................. : 17165 Von Karman Avenue, Suite 105, Irvine CA, 92614, USA Product description Product name ........................... : YoLink Finger Model and/or type reference : N/A Serial Model .............................. : YS4908-UC YS4908-UA Te s t Standards ....................... : FCC Part15.249 ANSI C63.10-2 013 This device described above has been tested by BCTC, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of BCTC, this document may be altered or revised by BCTC, personal only, and shall be noted in the revision of the document. Prepared by(Engineer): Willem Wang Reviewer(Supervisor): Eric Yang Approved(Manager): Zero Zhou Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 2 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E Table of Contents Page 1 . SUMMARY OF TEST RESULTS 5 1.1 TEST FACILITY 6 1.2 MEASUREMENT UNCERTAINTY 6 2 . GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF EUT 7 2.2 DESCRIPTION OF TEST MODES 8 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 9 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 3 . EMC EMISSION TEST 12 3.1 CONDUCTED EMISSION MEASUREMENT 12 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 12 3.1.2 TEST PROCEDURE 12 3.1.3 DEVIATION FROM TEST STANDARD 12 3.1.4 TEST SETUP 13 3.1.5 EUT OPERATING CONDITIONS 13 3.1.6 TEST RESULTS 13 3.2 RADIATED EMISSION MEASUREMENT 14 3.2.1 RADIATED EMISSION LIMITS 14 3.2.2 TEST PROCEDURE 15 3.2.3 DEVIATION FROM TEST STANDARD 15 3.2.4 TEST SETUP 16 3.2.5 EUT OPERATING CONDITIONS 17 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 18 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 19 3.2.8 TEST RESULTS (ABOVE 1000 MHZ) 21 3.2.9 FIELD STRENGTH CALCULATION 22 4 . 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE 24 4.1 DEVIATION FROM STANDARD 24 4.2 TEST SETUP 24 4.3 EUT OPERATION CONDITIONS 24 4.4 TEST RESULTS 24 5 . BANDWIDTH TEST 27 5.1 APPLIED PROCEDURES / LIMIT 27 Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 3 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E Table of Contents Page 5.1.1 TEST PROCEDURE 27 5.1.2 DEVIATION FROM STANDARD 27 5.1.3 TEST SETUP 27 5.1.4 EUT OPERATION CONDITIONS 27 5.1.5 TEST RESULTS 28 6 . ANTENNA REQUIREMENT 29 6.1 STANDARD REQUIREMENT 29 6.2 EUT ANTENNA 29 7 . EUT TEST PHOTO 30 8 . PHOTO OF THE EUT 31 Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 4 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.215 20dB Bandwidth PASS 15.249 Fundamental &Radiated Spurious Emission Measurement PASS 15.205 Band Edge Emission PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 5 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E 1.1 TEST FACILITY Shenzhen BCTC Testing Co., Ltd. Add. : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China FCC Test Firm Registration Number: 712850 IC Registered No.: 23583 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 3m camber Radiated spurious emission(30MHz-1GHz) U=4.3dB 2 3m chamber Radiated spurious emission(1GHz-18GHz) U=4.5dB 3 3m chamber Radiated spurious emission(18GHz-40GHz) U=3.34dB 4 Conducted Adjacent channel power U=1.38dB 5 Conducted output power uncertainty Above 1G U=1.576dB 6 Conducted output power uncertainty below 1G U=1.28dB 7 humidity uncertainty U=5.3% 8 Temperature uncertainty U=0.59°C Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 6 of 31 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment YoLink Finger Trade Name N/A Model Name YS4908-UC Serial Model YS4908-UA Model Difference All the model are the same circuit and RF module, except model names . Product Description The EUT is a YoLink Finger Operation Frequency: 910.3MHz Modulation Type: LoRa Number Of Channel 1CH Antenna Designation: Please see Note 3. Antenna Gain (dBi) 1dBi Based on the application, features, or specification exhibited in User's Manual, the EUT is considered as an ITE/Computing Device. More details of EUT technical specific…

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Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000005E 7. EUT TEST PHOTO Radiated Measurement Photos Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 30 of 31