REQUIREMENTS: YoLink Hub with an internet connection (wired Ethernet or 2.4GHz Wi-Fi) Garage Door Opener Smartphone or tablet running iOS 9 or higher, Android 4.4 or higher Tools Required: Slotted screwdriver Installation Difficulty Level: Moderately Easy SUGGESTED PRODUCTS: YoLink Hub is required. Starting your first YoLink system? Consider Garage Door Kit with Hub Pair your YoLink Garage Door Controller with the YoLink Garage Door Sensor to obtain the status of the garage door TECHNICAL SPECS: Semtech LoRa RF Module YL09 microcontroller with 32-Bit RISC processor Color: White Dimensions [L x W x D]: 2.09 x 1.93 x .98 inches (53.09 x 49.02 x 75.69 mm) Open/Close Button (Controller) Multi-color status LED Set button Power: 5 Volts DC Environmental: Operating Temperature Range: -4°F – 122°F (-20°C – 50°C) Operating Humidity Range: 10 – 90% non-condensing Intended for indoor use only PACKAGE CONTENTS: (1) Garage Door Controller (1) Power Adapter (1) USB Cable (1) Signal Wire PLEASE NOTE: Check your garage door operator for compatibility before purchasing! If Garage Door Controller is not compatible with your garage door operator, YoLink Finger will be 100% compatible. View information about compatibility here. Garage door operators can be dangerous if not installed or used properly. Please read the Installation & User Guide before installation and follow all safety recommendations.