American Sensors 120V Hardwire Ionization Smoke Alarm, With Relay

The American Sensors ESA5011 is a 120 Volt hardwired smoke alarm with built-in relay is an all purpose smoke alarm incorporating "dual-ionization" technology for sensing visible and invisible particles of combustion. The built-in relay allows auxiliary devices to be signalled in an alarm condition, and the unit and contacts will automatically reset upon conclusion. Up to 18 units can be interconnected for simultaneous warnings.

120 Volt hardwire with built-in "NO/NC Form C" Relay
Automatic alarm reset feature
Alarm source indicator
Interconnectable up to 18 units (12 smoke alarms and 6 compatible devices combined)
Alarm and power test feature and LED's
Tamper Resistant "Lock-it" key mounting hardware included
Dual Ionization Technology
10 Year Limited Warranty
cUL approved for use in Canada

Also referred to as a Smoke Detector.