This wireless surveillance alarm can be used both as an alarm and as a customer joins or door chime. The motion sensor is placed on the entrance door and the receiver is placed where you can hear the best-or you can take it with you.
When the sensor detects movements-e.g. when the door opens and someone walks into-to start the alarm.
Also, it can be set to two different sounds: alarm (130 db alarm) or door chime sound. The sensor detects movements in up to 5 meters distance. The wireless range between sensor and signal unit is 15-20 meters.
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