Esse-Ti, GSM Gateway type GSM 500-GC met batterij

Universal GSM gateways compatible with any alarm system.

GSM500 is a device that, connected to a fixed telephone or to the PSTN input terminals of a PABX or autodialer, allows you to make and receive calls over the GSM network. For correct operation, a GSM SIM card is required.

GC (5IG-161): comes with magnet-base antenna amd extension cable (L= 2 m), built-in backup batteries and external adapter.