Universal 2-zone transmitter via 868 MHz unidirectional radio. Scope: Up to 400 m outside. Fully supervised It uses one of the more than 16 million address codes selected pseudo-randomly for the configuration. Selective response time adjusted to wired sensors (fast for shock sensors and slow for magnetic contacts). Saving the battery life: Events are sent only once every 2.5 minutes. Tamper of box and later. Consumption: 2 μA. Dimensions: 81 x 35x 32 mm.