Thermostats, Controls & Zoning

The economical Electric Heat Thermostat provides reliable line voltage control of resistive-rated electric heating equipment. A snap-action twist makes the circuit temperature rise or fall. The...

Duct smoke detector accessories add functionality to the duct smoke detection system by allowing quick, convenient inspections at eye level and effective audible and visible notification options.The...

Duct smoke detector accessories add functionality to the duct smoke detection system by allowing quick, convenient inspections at eye level and effective audible and visible notification options.The...

Duct smoke detector accessories add functionality to the duct smoke detection system by allowing quick, convenient inspections at eye level and effective audible and visible notification options.The...

Series/Model: InnovairFlex Series The InnovairFlex sampling tube may be installed from the front or back of the detector. The DST5 ducts 4 to 8 feet.   Details: Duct Smoke Detector Sampling...

Series/Model: InnovairFlex Series 4-Wire Photoelectric Sensor Component Only Sampling Tubes are not included 4-Wire Photoelectric, integrated low-flow technology Air velocity rating from 100 ft/min...

Series/Model: InnovairFlex Series The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain,...

Series/Model: InnovairFlex Series The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or...

Smoke emitter cartridges provide low cost leak testing of heat exchangers, air ducts, tanks and boilers. Visual air balancing of HVAC systems. Cartridges produce clean, non-toxic, oil free smoke...

Series/Model: STN STN Series Sampling Tubes are metal tubes with a notch for use with SL and RT Series detectors For duct widths of 12" to 3' STN-2.5 Sampling Tubes are metal tubes with a notch for...

Series/Model: MSR Horn, Strobe, or combination Horn/Strobe upgrade accessory. Clear lens The MSR-V-Plugin Upgrade is a Strobe only upgrade to be used with existing MSR-50 or MSR-100 remotes...

Series/Model: MSR-AV/T Provides stand-alone audible and visual alarm indicators LED Strobe Horn Single gang red Decora-style plate Clear strobe lens For use with UL listed 24V DC polarized power...