0.250″ (6.35mm), 0.188″ (4.7625mm), and 0.125″ (3.175mm) sheath diameters. General-purpose direct variable immersion thermocouple. Hazardous ratings are available.

A direct immersion style RTD that features field adjustable immersion length via a brass or 316 SS compression fitting with PTFE or SS ferrules. PTFE allows for readjustment of the immersion length. Add the HD04 connection head for a convenient and durable method of attaching your extension cable. Other heads and indicators can also be added.

Series 100 Standard Spec. Sheet  


Sensor typeThermocouple (Special Limits)
Temperature range-200°C to 1260°C (-328°F to 2300°F)
Sensor styleDirect immersion
Sheath diameter0.125", 0.250", or 0.375"
Immersion depthVariable
Process connection Compression
Head connectionNPT
Spring loaded for thermowellNo
Wire terminationHead
Hazardous RatingsOptional
Configure Part Application Notes