121-2, 121-3 High Temperature, High Pressure

For high temperature applications, the detector must be kept remote from the surface of the duct to protect the electronics. This is accomplished by stainless steel clad fiber optic probes to 'look' into the duct.

The 121 detectors feature a very tough and very smooth sapphire lens which promotes self cleaning and resists abrasion and corrosion.
The small size of the fiber optic probes also makes them ideal for mounting to small ducts.

The 121 detector is available with either 2 or 3 fiber optic probes.