THE GRI Door Alert Annunciator is designed to signal customer entry into a business establishment. A closed loop magnetic reed switch activates the Door Alert. It can be set by the installer for a two, four or six second sounding time. Offered in a recessed version (easily mounted in a single gang box) or as a surface mount version. Both units can be powered by an external 12 volt DC power source or 9 volt battery.
Also known as
- G.R.I. Telemark Corp. SURF MNT DOOR ANNUN CLSD LOOP - GI-DA2