CallTou WiFi Door Chime Sensor, Entry Alert for Home Store Office, 500FT Range, 20 Tones, 2 Sensors Color:3 Sensors + 1 Receiver The siren sound is 120db

The siren sound is 120db which can protect the places you need security alarm from intrusion

What are the advantages of the motion sensor chime

Food Court

Black Multiple Multiple Function

CallTou WiFi Door Chime Sensor, Entry Alert for Home Store Office, 500FT Range, 20 Tones, 2 Sensors Color:3 Sensors + 1 Receiver The siren sound is 120dbProduct description WiFi Door Chimes when Door Opens This WiFi alarm chime system can be connected to your mobile phone to your mobile phone to enable remote push notifications. This allows you to monitor your home anytime, anywhere, giving you peace of mind. When visitors arrive or toddler dementia sneak out, the receiver will sound a chime, and your mobile phone will receive a warning notification. Note: Only supports 2. 4GHz WiFi, does not support