Enercorp Instruments makes temperature sensors and transducers, including a general purpose industrial sensor, an accurate platinum RTD with thermocouple calibrations and a rugged construction. It also features a threaded cast aluminum head with gasket, with a 3/4" NPT female opening for piping or standard electrical fittings. It also has a standard process connector of 1/2", a standard sheath of 1/4", and is for temperatures up to 200C, 400C, or 600C with a thin-film RTD sensor.

Watlow makes resistance temperature sensors with ceramic elements for a temperature range of -200 to 650C, with a high signal-to-noise output, with insulation resistance values exceeding DIN-IEC-751 standards which minimizes self heating and ensures sensor sensitivity. These RTDs are available in a 6 or 12 inch adjustable spring style, an adjustable armor style, an open air (with or without flange) type, a cartridge with flange model, and a surface mount model.

Precision Measurements offers resistance temperature sensors, with a sheath diameter of 0.125", 0.188", 0.250", 0.313", or 0.375", with types including a spring loaded model for standard head, a general purpose stem sensitive model, a spring loaded explosion proof head, a 316SS standard sheath, or custom. Fitting types include hex nipple, hex bushing with head or process connection, hex nipple oil seal, bayonet spring loaded, or hex niple spring loaded.

Madison Co. offers resistance temperature detectors, including industrial 100 OHM probes (rigid mount), closed-tip probes, and their Madison-Omni RTDs, with a platinum probe and stainless steel (316) sheath, an analog 4-20 mA output signal with supply voltage of 10-30 VDC. This probe also has an electrical connection with an M12x1 thread, a process connection with a G 1/2 or 1/2" NPT thread, meeting IP67 standards.

Omega Engineering Inc. offers RTD probes, elements, and assemblies, including sanitary sensors, such as their PRS-M12 series RTD sensors, 3-A spprived with an M-12 connector, for hygienic, clean-in-plae, and sanitary applications with a 4-pin connector and 1.5" 16 AMP tri-grip fitting, in prove lengths of 3", 4", 5" or 6", with a temperature range from -50 to 200C and is compatible with 3-wire and 2-wire RTD instruments and transmitters.

Minco makes RTD sensor probes which are mineral insulated to 650C, with single and dual elements. Types include tip sensitive RTDs, electrically isolated RTDs, bayonet mount tip sensitive type, fast response types, and 550C RTD types. Their fast response RTDs are encased in stainless steel with a copper alloy tip, with a max case length of 48", and can withstand 10 to 2000Hz at 20Gs minimum vibration.

B & B Instruments, Inc. supplies standard and sanitary RTDs from manufacturers such as Reotemp, Amektek US Gauge, H.O. Trerice, and Weiss. Various types of RTDs include bimetallic, industrial glass, filled system, digital, and dual mode. Low range RTDs are built with Teflon insulated silver plated copper internal leads while high range RTDs are built with nickel internal leads. Case materials include stainless steel, cast aluminum, phenolic, and ABS. Case styles include stem and panel mounts while mounting styles include direct stem and remote capillary.