
Solid State Replacement Sensor
This replacement solid-state ammonia sensor can be used in all Cool Air Inc. detector models, regardless of age (excluding LBW-420-LEL and % vent line detectors).
Features
- Excellent durability to ammonia exposure
- 0-1000 ppm concentration range
- 3-year warranty
Price: $185.00
SKU: NH3-S-RPL*
* For use with LBW-420, LBW-50 and LBW-Watchman detector models

Electrochemical Replacement Sensor
This replacement electrochemical gas sensor can be used in LBW-420, LBW-Watchman and LBW-50 Cool Air Inc. detector models currently utilizing an electrochemical sensor. The replacement part is specific to the detector model.
Features
- Highly selective to target gas
- Excellent durability to target gas exposure
- Concentration range depends on target gas
- 3-year warranty
Price: $425.00
SKU's/Part Numbers
- NH3-420-EC - Replacement ammonia electrochemical sensor for LBW-420
- NH3-50-EC - Replacement ammonia electrochemical sensor for LBW-50
- NH3-Watchman-EC - Replacement ammonia electrochemical LBW-Watchman


Pellistor Sensor
This is a replacement pellistor sensor for LBW-420-LEL and 0 to 10% vent line detectors only. A conversion kit is available for older LBW-420-LELs.
Features
- For detecting high levels of ammonia (0-10%)
- Robust long-life sensor
- 3-year warranty
Price: $310.00
SKU’s/Part Numbers
- NH3-%-RPL*
* For use with LBW-420-LEL and 0 to 10% vent line detectors detector only

Aftermarket Replacement Sensor
Features
- Better electrochemical technology
- Sensing range 0 to 500ppm
- Excellent durability to NH3 exposure
- Long life (3 to 5 years)
- Three-year limited warranty
Price: $250.00
SKU’s/Part Numbers
- CAI-EC-RPL - Replacement electrochemical sensor for:
- Honeywell/Manning
EC-FX/EC-F9/EC-F2 to 500ppm only. - Calibration Technologies
GG-NH3-50, GG-NH3-100,
GG-NH3-150, GG-NH3-200,
GG-NH3-250, GG-NH3-300,
and GG-NH3-500.
- Honeywell/Manning