Siemens TRI-S 500-896225 -Single Input Monitor Module BRAND NEW OPENED BOX The Siemens Mode TRI-series intelligent interface modules are available in three (3) types: Model TRI-D, as well as Siemens TRI-S and TRI-R, which are both designed to monitor a (N.O) or (N.C) dry contact. Also, the interface module reports the status of the (N.O) or (N.C) contact to the control panel. The Siemens Model TRI-S of intelligent interface modules provides the most advanced method of addressing programming and supervision ? combined with sophisticated FACP communication. Besides, each Model TRI-series interface module incorporates a microcomputer chip. In turn, the microcomputer chip technology and its sophisticated bi-directional communication capabilities with the FACP, achieve the state of an ?Intelligent Device.? The sole purpose of Model TRI-S is to monitor and report the status of the contact. Model TRI-series has a multi-color LED that flashes green when operating normally; amber, if the unit is in trouble condition, and red to indicate a change of status command. Features / Specifications Used as an intelligent initiating interface module for the FireFinder XLS and MXL fire-alarm control panels (FACPs) Simple front-end access to programming port and wiring terminals Mounts in a 4?-square, 2-1/8?-deep standard or double-gang box Dynamic supervision 5-x-5-inch faceplate included Two-wire operation We are wholesaler/liquidators. We bought this in a lot of new items to resell. We are counting upon you to know what you are buying and if this item will suit your needs. No returns. Please only purchase this if you agree to those terms. *** PLEASE NOTE! Our store buys and sells a variety of new and used electronics, instruments, tools, antiques and many other items. We do our absolute best to thoroughly test all our merchandise and accurately describe and depict any flaw or defect we find. SHELF:59 SA