System Sensor 2151 Smoke Detector Els PW 17895 maintaining stable resistance and reliable

maintaining stable resistance and reliable performance in demanding residential HVAC applications

Corrosion-Resistant Hardware: Built to resist oxidation and scale buildup

allowing technicians to force a defrost cycle for diagnostic testing of the heater and thermostat circuit

Easy Readability: Features a 3

installing the correct restrictor orifice can stabilize the pressure switch signal and resolve intermittent ignition failures

System Sensor 2151 Smoke Detector Els PW 17895 maintaining stable resistance and reliableThe System Sensor 2151 is a professional grade, low profile photoelectric smoke detector designed for precise performance in commercial HVAC and fire alarm systems. This 100 Series plug in head utilizes a state of the art optical sensing chamber and is engineered to provide stable detection in diverse environments. Technicians should note that this unit is the direct replacement for 2151+ and the 70 540000 001 models, ensuring seamless integration