BroadLink HTS2 Sensor Accessory integrates the functions of temperature and humidity sensor and USB power cable. Connect it to the RM4 mini and USB adapter just like an ordinary USB cable, at the control panel of RM4 mini in BroadLink app, it will display temperature and humidity of the room where the sensor located.
Note: It only supports BroadLink RM4 mini and RM4 Pro universal remote, it doesn’t support BroadLink RM mini3, RM Pro+ or BestCon RM4C mini.