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Probes Assemblies



RTD Elements
General Purpose Probe Assemblies
Part Number TYPE AT
Description Closed end Aluminum Tube:
Low cost deep draw housing. Available in standard or black-anodized finish. Standard size is 0.187 in OD x 1.5 in. long. Fast thermal response time. Specify RTD or Thermistor sensor, wire or cable type and length, and operating temperature range.
Part Number TYPE BT
Description Closed end Brass Tube:
Low cost deep draw or machined, closed end housing. Available in standard or nickel-plated finish. Diameters from 0.156 in. to 0.375 in. Specify RTD or Thermistor sensor, wire or cable type and length, and operating temperature range.
Part Number TYPE PT
Description Closed end Plastic or Epoxy Tube:
Available in variety of materials including PVC, Nylon, DAP, Teflon and others. Diameters from 0.125 in. to 0.375 in. Lengths from 0.5 in to 2.0 in. Specify RTD or Thermistor sensor, wire or cable type and length, and operating temperature range.
Part Number TYPE ST
Description Closed end Stainless Steel Tube:
Type 304 and 316 materials for corrosion resistance. Standard diameters from 0.062 in. to 0.375 in. TIG welded end round tip for high reliability. Specify RTD or Thermistor sensor, wire or cable type and length, and operating temperature range.


RTD Elements
Surface Temperature Sensors
Part Number TYPE AX
Description Machined Aluminum Block:
Can be specified with a wide variety of housing dimensions and mounting hole sizes. Available in standard or black-anodized finish. Fast thermal response time. Specify RTD or Thermistor sensor, wire type and length, and operating temperature range.
Part Number TYPE AY
Description Machined Aluminum - Threaded:
Can be specified with a wide variety of housing dimensions and mounting hole sizes. Available in standard or black-anodized finish. Fast thermal response time. Specify RTD or Thermistor sensor, wire type and length, and operating temperature range.
Part Number TYPE RT
Description Tin-Plated Copper Ring Terminal:
Low cost open barrel ring terminal. Available with #4 to #10 mounting hole. Very fast thermal response time. Specify RTD or Thermistor sensor, wire type and length, and operating temperature range.
Part Number TYPE RC
Description Closed Barrel Ring Terminal:
Rugged, industrial design with tin-plated copper housing. Available with up to 3/8” mounting hole. Can be provided with lead wires or jacketed cable. Typically used with NTC or silicon PTC thermistor. Specify sensor and wire or cable type and length.


RTD Elements
Threaded and Flange Mount Probe Assemblies
Part Number TYPE PX
Description Machined Plastic –Threaded:
Typically used for immersion / water temperature sensing. Available in PVC, Nylon, Teflon or other machinable plastics. Specify straight or pipe threads. Can be supplied as two-piece design with aluminum or stainless steel tube. Specify NTC or silicon PTC thermistor sensing element.
Part Number TYPE SX
Description Stainless Steel – Threaded:
Used for high temperature immersion sensing. Type 304 or 316 materials for excellent corrosion resistance. Available with straight or pipe threads. Standard tube diameters from 1/16” to 3/8” OD. TIG welded for high reliability. Specify NTC thermistor or Pt RTD sensing element.
Part Number TYPE SF
Description Stainless Steel Tube with Mounting Flange:
Often used for sensing air temperature in HVAC ducts. Type 304 or 316 materials for excellent corrosion resistance. With round or rectangular flange. Standard tube diameters from 1/16” to 3/8” OD. TIG welded for high reliability. Specify NTC thermistor or Pt RTD sensing element.


RTD Elements
Special Purpose Probe Assemblies
Part Number TYPE PW
Description Clamp-on Water Temp Sensor:
For use in pool/spa and solar water heaters. Allows for direct insertion in PVC water pipes. Typically mounted with Stainless Steel hose clamp. Fast thermal response time with reduced stem effect. Specify NTC Thermistor element, wire or cable length.
Part Number TYPE SS
Description Swaged end Stainless Steel:
Used extensively in HVAC/R applications. Swaged end provides moisture seal with superior strain relief. Available with 3/16” and ¼” tubes. Fast thermal response time. Excellent freeze / thaw and vibration resistance. Specify NTC Thermistor and cable color / length.
Part Number TYPE CC
Description Clip-On on Pipe Mount:
Used for direct mount of sensor on copper piping with tube diameters from 3/16 inch to 7/8 inch. Clip designs for both 3/16 inch and ¼ inch sensor housings. Simple to install. Fast thermal response time. Specify NTC Thermistor and cable color / length.
Part Number TYPE XJ
Description Integrated connector assembly:
Rugged sensor assembly with integral modular connector. Typically used for Industrial Controls with standard modular cable assemblies. Wide variety of housings and connectors. Can be supplied with thermistor RTD or digital sensing elements.