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Sensors • Temperature Sensors

Generally there are two types of temperature sensors: contact and noncontact. Contact temperature sensors measure their own temperature, while a noncontact sensor measures the thermal radiant power of infrared or optical radiation from an area’s surface.In most industrial process applications a temperature sensor is inserted into a thermowell or protection tube. Temperature sensors are available in a number of different assemblies including: threaded, flanged, van stone, weld-in, socket, sanitary, and pipe.

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  • Madison Co.

    Madison makes temperature sensors including base-wire, gen purpose epoxy-insulated, reduced tip, mini plug termination, sheathed, and industrial 1/2" NPT thermocouples. Also available are 100 OHM RTD probes with rigid mount, R2 general purpose relays, and more.

  • Precision Measurements, Inc.

    Precision measurements offers custom platinum resistance temperature sensors, as well as mineral insulated thermocouples, plastic thermocouples, and connector systems. Their fixed length bayonet type thermocouples include straight, 90 degree, or 45 degree bend, single element types, dual element types, flex hose or spring types, and more.

  • Temperature Specialists, Inc.

    Temperature Specialists sells temperature sensors including thin film platinum, wire wound platinum, transition style, sheath style, and bayonet style types. Their wire-wound platinum types have resistance of 100, 200, 500, or 1000 OHM, while their thin film platinum resistance temperature detectors have a resistance of 100, 500, or 1000 OHM.

  • Watlow

    Watlow manufactures a complete line of resistance temperature sensors that include resistance temperature detectors, thermistors and the ENVIROSEAL brand temperature sensor for heavy duty applications in harsh environments. Watlow's platinum resistance elements are designed to ensure precise and repeatable temperature measurement. RTDs and thermistors are accurate, sensitive, standardized and interchangeable.

  • Emerson Process Management

    Emerson Process Management makes Rosemount temperature sensors, including single point measurement models, high density temperature measurement sensors, and general use sensors. Their high density sensors are designed for Foundation fieldbus and WirelessHART standards, allowing you to reduce wiring and conduit costs, measures multiple points with one transmitter, minimizes startup time, and more.

  • Measurement Specialties, Inc.

    Measurement Specialties sells temperature sensors for instrumentation, appliance, military, aerospace, and HVACR applications, including leaded thermistors, leadless temperature chips, temperature probe assemblies, and thermopiles. Their metrology temperature probes are accurate to +/-0.115C from 0C to 50C.

  • Dwyer Instruments, Inc.

    Dwyer Instruments sells temperature sensors including thermocouples and resistance temperature detectors, sensors for extruders and plastic machines, and mineral insualted devices. Their bayonet tyle sensors can have tip temperatures as high as 480C for fiberglass insulated wire, 250C for FEP insulated wire, and come with a head cover and 1/2" hex nipple.

  • LumaSense Technologies, Inc.

    LumaSense Technologies makes fiber optic temperature sensors, including two and four channel thermometers for industrial, laboratory, and research uses. Their two channel sensor does not require recalibration and is very small, 11.10cm by 14.38cm by 5.66cm, and is immune to EMI, RF, and microwave interference.

  • Ives Equipment Corp.

    Ives is a distributor of a wide array of industrial components including temperature sensors from Asco, Siemens, and Applied Sensor Technologies.

  • Tempco Electric Heater Corp.

    Tempco sells temperature sensor products including thermocouples, process thermocouples, accu-Ohm resistance temperature detectors, thermowells, mineral insulated thermocouples, and more. Their thermocouples include bayonet type, melt-bolt type, and OEM replacements, available in ANSI type "J" standard, as well as K, T, or E calibrations.

  • Electro-Sensors, Inc.

    Electro-Sensors temperature sensors are 2-wire, loop-powered, and have a 4-20 mA analog output. Models include an attachment probe, sensor, and 2-wire 4-20 mA signal conditioner in one. There is no user calibration and models are compatible with PLCs, meters, and data acquisition systems. They offer three probe/mounting options that along with Intrinsically Safe (IS) and Dust Ignition-proof models.

  • Innovative Sensor Technology

    Innovative Sensor Technology is an international manufacturer of thin-film sensing devices; RTD temperature sensors, capacitive relative humidity sensors, and thermal mass flow sensors. Established in 1991, IST is an ISO 9001 certified company and is headquartered in Wattwil, Switzerland, with an office in the USA.

  • Micro Epsilon

    Micro-Epsilon offers infrared temperature sensors in their thermoMETER series, including a compact high speed model with a 100Hz sampling rate, laser aiming models, integrated OEM controllers, and handheld pyrometers with laser sighting. Their two-color radiometric pyrometer has a temperature range from 700 to 1800C with an optical resolution of 60:1 and is for single- or two-channel use with an acquisition time of 5ms.

  • Qti

    Qti Quality Thermistor Inc makes temperature sensors including thermistors, negative temperature co-efficient models and positive temperature coefficient models , waterproof IP68 models, miniature sensors, and NTC probes. Their probes include surface probes, gas or air temp probes, and liquid temperature probes such as immersion probes, thermal bridges, flanged closed tip precision probes, and more.

  • LakeShore

    Lake Shore makes cryogenic temperature sensors including silicon and GaAlAs diodes; positive temperature co-efficient RTDs in platinum and rhodium-iron models; NTC RTDs in Cernox, Cernox HT, germanium, carbon-glass, and ruthenium oxide; and thermocouples. Their platinum RTDs follow an industry standard curve from 73K to 873K and can be used down to 14K, while their rhodium-iron thin film sensors include wirewound capsule versions.

  • Fluke (Hart Scientific)

    Fluke makes temperature sensors such as thermocouples, thermistors, and resistance thermometers, including platinum resistance thermometers like secondary standard type, secondary reference type, precision industrial type, fast response PRTs, small diameter industrial PRTs, and full immersion PRTs. Their thermistors run from 0 to 100C and their thermocouples come in R and S type standards from 0 to 1450C.

  • Honeywell Sensing and Control

    Honeywell makes temperature sensors including the R300 immersion sensor, an RTD thermistor with a nominal resistance of 100 Ohm at 25C, stainless steel housing, and an overmolded connector with an M14 x 1.50 thread, with an operating temperature range from -40 to 275C. They also offer the 500 series NTC thermistor with air/gas, immersion, surface, and liquid level sensing from -40 to 300C and nominal resistance of 200 to 1,000,000 Ohm.

  • Minco

    Minco makes temperature sensors including RTDs, thermocouples, and temperature transmitters as well as thermowells. They offer tip-sensitive, explosion-proof, flame proof, and high temperature versions in spring-loaded RTDs and thermocouples, direct immersion RTDs and thermocouples, eurostyle sensors, and metric dimensioned flame proof RTD sensors, thermocouples, and RTDs with transmitters.

  • Thermalogic Corp.

    Thermalogic makes temperature sensors including custom RTDs, thermistors, and thermocouple assemblies ranging from -40 to 250C on the thermistors, -100 to 500C on the platinum RTDs, and -100 to 500C tyle J and type K thermocouples. Their RTDs also feature rugged pt film elements and industry standard or special curve with a choice of element % tolerance.

  • Electrochem

    Electrochem makes the Temperature Sensor One TS1 wireless sensor with a probe temperature range from -100 to 200C, +/- 1C error band, a stainless steel construction, internal battery, and integrated antennae. The TS1 is ~200mm long for gas or liquid media with no welds and 40,000 psi port burst pressure with a weight of 500g.