Retekess TH011 WiFi Door Alarms When Opened,Door Sensor,32 Chimes 5 Volume Levels,Rechargeable Door Chime for Business,2 Sensors 1 Receiver for Home,Dementia,Office

Wifi wireless communication; Retekess TH011 door alarms for home security can go beyond the distance limit and keep you in control of your families security anytime and anywhere ^^ APP remote control; with dual reminder of both gateway and smart phone; alarm information can be synchronized in real time; enable you to use anywhere and anytime; detector your parents' actual conditions ^^ Easy installation; install host flat on the desk; and can hang on the wall; the host extends to the wall; or can be hung by a lanyard; door sensor can be installed on the door or window; infrared sensor can be hung on the wall; easy to install and use ^^ Long distance between hosts and sensors; the distance between the host and sensors is >100m (open air); it can work normally if you put the sensors anywhere at home ^^ Ringtones and volume can be adjusted; door alarms for dementia have 32 ringtones and 5-level volume; volume adjustment includes silent mode; you can choose your favorite ringtones and volume as you like