FST-851A Series Thermal Heat Detectors

• Intelligent (addressable) heat sensing with rotary switch addressing

• Thermistor-based temperature monitoring

• Seamless analog communication with ONYX® panels

• Low standby current

• Dual LEDs for clear status indication

• Robust design for industrial and commercial use

• Power rooms and machinery spaces

• Manufacturing floors

• Cleanrooms and areas where smoke detection is impractical

• Locations requiring enhanced heat-based fire detection

With intelligent integration and multiple thermal detection options, the FST-851A Series offers a robust solution for heat-based fire detection in complex or high-temperature environments, fully compatible with ONYX® alarm panels.