Designed for hardwire installations (not a plug-in device); 90-132VAC Input. Enclosure Dimensions: 14" x 14" x 4.75". Supplied with two 12 V DC 7AH batteries.
The rechargeable battery provides 12V, 7Ah when AC input fails. It can help the system stability without any interruption of operation. Suprema DM-20 multi door I/O module Suprema Secure I/O 2 compact ...