Garage Door Opener, DMG Smart Garage Door Opener Remote Sensor Smart Wifi Garage Door Opener Controller(Open & Close your Garage by phone) Note before Order, please test compatibility: You can use the pliers to short-circuit the wall button terminal on the opener. If the garage door opens or closes, it can work with our smart controller. This Garage smart controller uses to work with the Garage opener and make it can be controlled by the phone, easy to install and without any changes in your Garage, Just one to make the garage smart, and you will have this function to open and close the garage door by phone, by schedules, by voice (work with Alexa & google home), Query status, query open/close records, etc. Easy to install Just connect the red & black wire with the same port as your wall switch/console and Install the wired door sensor on your garage door Share Device With Your Family After the family member registers a Tuya account, You can authorize device control to the family by "share device" in the APP Wired door sensor mount Find a proper position on the garage door to mount the sensor(You can use the included double-sided adhesive tapes, screws, or brackets for sensor fixation). Please make sure the distance between the two sensors is less than 20mm when the garage door is closed, and the two sensors are well separated when the garage door is open Specification: Voltage: 110V - 260V Type: Smart Home System Product single weight: 300G Package Included: Garage Door Opener*1