How it works.
You can choose to receive an SMS or push notification to your smartphone informing you who has disarmed your H4 alarm system. This is ideal if you want to know when the kids have arrived home from school or perhaps at a workplace where you might like to know which employee has disarmed the alarm.
The finer details
|Dimensions:||30mm x 30mm x 6mm|
|Temp. Range:||-10 ~ 50 °C|