The USI Electric USI-960 Relay Module for Smoke and Fire Alarms is designed to control the external devices on USI Electric and Universal smoke alarms and/or fire alarms. This relay module is UL listed and controls lights, sirens, bells, electric doors, exit signs and more. With Form C Dry Contacts only, the USI-960 relay module does not supply 120-Volts to the load and controls devices up to 120 VAC and 28 VDC at 5 Amps. This relay module is pre-stripped for a quick installation and comes in a compact size of 3.5-in. long by 1 in. wide by 1.75 in. high. The USI Electric USI-960 Relay Module for Smoke and Fire Alarms comes with a 1 year limited warranty that protects against defects in materials and workmanship. USI Electric is a subsidiary of Universal Security Instruments Inc., a U.S. based manufacturer of high quality, easy-to-install home safety products. Founded in 1969, Universal Security Instruments has over 40 years of heritage in providing home safety products for families. With state-of-the-art manufacturing facilities, Universal Security Instruments continues to launch revolutionary new products and technologies with the mission of always working to keep families protected.