The DSC WS4965 Tri zone door / window wireless transmitter has an internal reed switch with up to a .5" gap rating for a door or window and two double terminals for use with two external normally closed switches (not included). Each of the three inputs reports as it's own zone on the DSC system. There is also a tilt mode available for use on overhead doors.. The WS4965 measurements are 2 and 5/16" long x 1 and 11/16" wide and is 1" deep. Includes a lithium battery that last up to four years under normal use |
