ESSETI 5IG-151 Gsm500 M2M interface with quad-band gsm module by

Gsm500 M2M interface with industrial-type quad band gsm module for signalling entry closure via text message or CLI call (ring) supplied with internal back-up batteries lasting 8 hours in stand-by and 1 hour in conversation. 1 relay for remote activation. It is also supplied with a magnetic-based antenna extension of a length equal to 2 meters and an external 230 VAC/12 VDC power supply.