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Our thermal detectors use an innovative thermistor sensing circuit to produce 135°F fixed
low-profile intelligent rate-of-rise fixed thermal sensor
The Notifier FSB-200S is an Intelligent Projected Beam Smoke Detector with integral Sensitivity Test filter (requires external power supply)
They may also be configured as a Style B
System Sensor 5251H Intelligent High Temperature Thermal Detector Gamewell-FCI AMM-4 Our thermal detectors use anThese sensors are designed to provide open area protection with 50 foot spacing capability as approved by UL 521. Model 5251B is a fixed temperature sensor with a 135F fixed temperature alarm. Model 5251RB is a rate of rise temperature sensor with a 135F fixed temperature alarm. Model 5251H is a high temperature sensor with a 190F fixed temperature alarm. Two LEDs on each sensor light to provide 360 visibility of the sensor indication. The LEDs can be
