Buy resistance thermometers

RTDs from JUMO are available in a wide variety of versions which can be used in numerous industries and applications. They meet the highest demands for chemical resistance, hygienic requirements, fast response times, precision, and vibration. Customer-specific versions are also available upon request. Buy resistance thermometers or request a sales quotation!

  • Product selection guide

RTD temperature probes

Filter
1
Hits: 52
Screw-in RTD temperature probe - With terminal head form B
H2 Signet

Screw-in RTD temperature probe

With terminal head form B Basic type: 902020
Screw-in RTD temperature probes are predominantly used for measuring temperatures in liquids and gases. The installation type enables the formation of reliable seals for both vacuum and overpressure applications.
  • Temp.: -50 to +600 °C
  • Terminal heads BUZ/BUZH/BBK
  • Temperature sensor Pt100/Pt500/Pt1000
Screw-in RTD temperature probe - With terminal head form J
H2 Signet

Screw-in RTD temperature probe

With terminal head form J Basic type: 902030
Screw-in RTD temperature probes are predominantly used for measuring temperatures in liquids and gases. The installation type enables the formation of reliable seals for both vacuum and overpressure applications.
  • Temp.: -50 to +400 °C
  • Reliable seal in the event of vacuum and overpressure
  • Temperature sensor Pt100
Push-in RTD temperature probe - With terminal head form B

Push-in RTD temperature probe

With terminal head form B Basic type: 902120
Push-in RTD temperature probes are predominantly used for temperature measurement in liquid and gases. Application areas include air conditioning and refrigeration technology, process technology as well as heating, furnace, and apparatus engineering.
  • Temp.: -50 to +600 °C
  • Sensor: Pt100, Pt500, or Pt1000
  • Two-wire, three-wire, or four-wire
Push-in RTD temperature probe - With terminal head form J

Push-in RTD temperature probe

With terminal head form J Basic type: 902130
Push-in RTD temperature probes are predominantly used for temperature measurement in liquid and gases. The application areas are, among others, in air-conditioning and refrigeration technology as well heating, furnace, and apparatus engineering.
  • Temp.: -50 to +400 °C
  • Protection tube, continuous or stepped down
  • Pt100 temperature sensor
JUMO dTRANS T100 - Screw-in RTD temperature probe with/without transmitter
H2 Signet

JUMO dTRANS T100

Screw-in RTD temperature probe with/without transmitter Basic type: 902815
The product can be used in a wide range of industrial application areas. In particular for hygienic applications in the food and pharmaceutical industry. It consists of a protection tube with an integrated temperature sensor, a process connection, and an attached transmitter.
  • Machine connector M12 × 1
  • ATEX/IECEx version possible
  • Temp.: -50 to +260 °C
RTD temperature probes - for indoors, walls, and outside

RTD temperature probes

for indoors, walls, and outside Basic type: 902520
Indoor, wall, and outdoor RTD temperature probes for air conditioning technology are mainly used to measure temperature in rooms, halls, and outdoors. Various device versions made of plastic with different protection types are available for the respective measuring task.
  • Temp.: -50 to +90 °C
  • Protection type IP20 to IP65
  • Sensor: Pt100, Pt1000, or Ni1000
JUMO VIBROtemp - Screw-in RTD temperature probe with plug connector
H2 Signet

JUMO VIBROtemp

Screw-in RTD temperature probe with plug connector Basic type: 902040
The screw-in RTD temperature probes of the VIBROtemp series are reliable –even under pressure– at measuring the correct temperature in commercial vehicles, construction machinery, agricultural machinery, motors, compressors, and in many areas from the railway technology field. Use in hydrogen applications is possible. Different plug connections are available to suit the specific application area.
  • Pt100 temperature sensor
  • Protection type: IP67/IP69
  • Temp.: -50 to +270 °C
JUMO Wtrans receiver - Universal receiver for JUMO wireless measuring probes

JUMO Wtrans receiver

Universal receiver for JUMO wireless measuring probes Basic type: 902931
The Wtrans receiver T01, in combination with suitable Wtrans transmitters, is used for the mobile or stationary measurement of the following physical measurands: temperature, pressure, and humidity. The wireless sensor technology also works in a harsh industrial environment.
  • Signals (0(4) to 20 mA, 0 to 10 V)
  • RS485 interface
  • Open air range 300 m
JUMO dTRANS T1000 - Temperature sensor with IO-Link
H2 Signet

JUMO dTRANS T1000

Temperature sensor with IO-Link Basic type: 902915
The temperature sensor is equipped with an IO-Link interface that supports bidirectional communication (e.g. to exchange the process data, parameters, diagnostic information, and status messages) – ideal for connecting to automation systems in plant and mechanical engineering.
  • Temp.: -50 to +260 °C
  • Pt1000 temperature sensor
  • IO-Link interface
JUMO railTEMP - Wheelset temperature probe

JUMO railTEMP

Wheelset temperature probe Basic type: 902195
JUMO railTEMP has a qualified measuring insert especially developed for railway applications with up to 2 sensing elements and can be equipped with different sensors. The firmly attached connection line is available with a variety of different connections or high-quality connectors. Halogen-free materials and cable protection ensure maximum safety in rail transport as well as reliable measurement results.
  • Temp.: -50 to +200 °C
  • Protection type: IP68 / IP69
  • Certified acc. to DIN EN 50155/61373
JUMO CANtrans T - RTD temperature probe with CANopen output

JUMO CANtrans T

RTD temperature probe with CANopen output Basic type: 902910
RTD temperature probes are predominantly used for temperature measurement in liquids and gases. Areas of application include medical technology, mechanical engineering, drive technology, commercial vehicles, and railroad systems.
  • Temp.: -50 to +450 °C
  • CANopen software
  • Pt1000 temperature sensor
Mineral-insulated RTD temperature probe - With bare connection wires according to DIN EN 60751

Mineral-insulated RTD temperature probe

With bare connection wires according to DIN EN 60751 Basic type: 902210
Mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, and in engine manufacturing due to their flexibility and easy mounting.
  • Temp.: -50 (-200) to +600 °C
  • Temperature sensor: Pt100 or Pt1000
  • Response time: t0.5 from 0.7 s
Screw-in melt RTD temperature probe - For application in the plastics industry

Screw-in melt RTD temperature probe

For application in the plastics industry Basic type: 902090
Screw-in melt RTD temperature probes are predominantly used for temperature measurement in the plastics industry and acquiring melt temperatures. Sharp or flat probe tips ensure optimum temperature acquisition depending on the requirements.
  • Temp.: -50 to +400 °C
  • Pt100 temperature sensor
  • Two-wire, three-wire, or four-wire
Push-in RTD temperature probe - With connecting cable for solar thermal systems

Push-in RTD temperature probe

With connecting cable for solar thermal systems Basic type: 902153
The push-in RTD temperature probes have been especially developed for the requirements of temperature measurement in solar thermal plants. They are used in collectors and accumulators of solar thermal plants.
  • Temp.: -50 to +260 °C
  • Pt1000 temperature sensor
  • Response time: 0.4 m/s
Mineral-insulated RTD temperature probe - With LEMO coupling according to DIN EN 6075

Mineral-insulated RTD temperature probe

With LEMO coupling according to DIN EN 6075 Basic type: 902240
Mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, and in engine manufacturing due to their flexibility and easy mounting.
  • Temp.: -50 (-200) to +600 °C
  • Temperature sensor: Pt100 or Pt1000
  • Response time: t0.5 from 0.7 s
ATEX/IECEx RTD temperature probe - With connecting cable according to DIN EN 60751

ATEX/IECEx RTD temperature probe

With connecting cable according to DIN EN 60751 Basic type: 902821
Due to their specific features, ATEX/IECEx RTD temperature probes with connecting cables are used in pharmaceutical and chemical plants, power plants, pipes, on test rigs, in engine manufacturing, and at any measuring locations requiring flexibility and simple replacement.
  • Temp.: -100 to +600 °C
  • Temperature sensor: Pt100/Pt1000
  • Individual design types
JUMO MarineTemp - Screw-in RTD temperature probe for marine applications

JUMO MarineTemp

Screw-in RTD temperature probe for marine applications Basic type: 902850
The screw-in RTD temperature probe is the preferred choice for measuring temperatures in liquid and gaseous media in the shipping industry. A decisive criterion is the reliable sealing feature when vacuum and overpressure occurs. This is how it is certified according to Bureau Veritas.
  • Temperature: -50 to +400 °C
  • Pt100 or Pt1000 temperature sensor
  • Maritime type approval Bureau Veritas
Multipoint temperature probe - For temperature measurement in grain silos

Multipoint temperature probe

For temperature measurement in grain silos Basic type: 903530
The multipoint temperature probe reliably measures the temperature at different heights of a silo. The RTD temperature probe can be used for concrete and metal silos. Depending on the version, the multipoint temperature probe can be mounted outside or inside.
  • Measuring range: -5 to +80 °C
  • Analog or digital temperature sensor
  • ATEX approval zone 20 (dust)
Mineral-insulated RTD temperature probe - With terminal head form B according to DIN EN 60751

Mineral-insulated RTD temperature probe

With terminal head form B according to DIN EN 60751 Basic type: 902220
Mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, and in engine manufacturing due to their flexibility and easy mounting.
  • Temp.: -50 (-200) to +600 °C
  • Pt100 temperature sensor
  • Response time: t0.5 from 0.7 s
JUMO HEATtemp - Screw-in RTD temperature probe for combined cold/heat meters with terminal head for direct mounting (type DL)

JUMO HEATtemp

Screw-in RTD temperature probe for combined cold/heat meters with terminal head for direct mounting (type DL) Basic type: 902454
Combined cold/heat meter RTD temperature probes are used for temperature measurement in closed pipeline systems. Direct mounting without an additional thermowell is recommended to achieve optimum thermal coupling to the measurement medium in the heating system.
  • Temp.: 0 to 120 °C (cold) / 180 °C (heat)
  • Temperature sensor: Pt100, Pt500, Pt1000
  • Insertion length 85 to 280 mm
JUMO HEATtemp - Push-in RTD temperature probes for combined cold and heat meters with terminal head for thermowells (type PL)

JUMO HEATtemp

Push-in RTD temperature probes for combined cold and heat meters with terminal head for thermowells (type PL) Basic type: 902464
Combined cold and heat meter RTD temperature probes are used for measuring the temperature in closed pipeline systems. Due to the installation in thermowells with fitting tolerance, the system no longer needs to be emptied during regular replacement once the certification period has elapsed.
  • Temp.: 0 to 120 °C (cold) / 180 °C (heat)
  • Temperature sensor: Pt100, Pt500, Pt1000
  • Insertion length: 85 to 400 mm
JUMO HEATtemp - Screw-in RTD temperature probe for combined cold and heat meters for direct mounting (type DS/DL)

JUMO HEATtemp

Screw-in RTD temperature probe for combined cold and heat meters for direct mounting (type DS/DL) Basic type: 902455
Combined cold/heat meter RTD temperature probes are used for temperature measurement in closed pipeline systems. Direct mounting without an additional thermowell is recommended to achieve optimum thermal coupling to the measurement medium in the heating system.
  • Temp.: 0 to 120 °C (cold) / 180 °C (heat)
  • Temperature sensor: Pt100, Pt500, Pt1000
  • Insertion length: 25 to 60 mm / 60 to 210 mm
JUMO HEATtemp - Screw-in RTD temperature probe for heat meters with terminal head for direct mounting (type DL)

JUMO HEATtemp

Screw-in RTD temperature probe for heat meters with terminal head for direct mounting (type DL) Basic type: 902427
These type DL heat and cold meter RTD temperature probes are used for temperature measurement in closed pipeline systems. Direct mounting without an additional immersion sleeve is recommended to achieve optimum thermal coupling to the measurement medium in the heating system.
  • Temp.: 0 to 180 °C
  • Temperature sensor: Pt100, Pt500, Pt1000
  • Insertion length 85 to 280 mm
JUMO HEATtemp - Push-in RTD temperature probes for heat meters with terminal head for immersion sleeves (type PL)

JUMO HEATtemp

Push-in RTD temperature probes for heat meters with terminal head for immersion sleeves (type PL) Basic type: 902437
Heat meter RTD temperature probes are used for temperature measurement in closed pipeline systems. Due to the installation in immersion sleeves with fitting tolerance, the system no longer needs to be emptied during regular replacement once the certification period has elapsed.
  • Temp.: 0 to 180 °C
  • Temperature sensor: Pt100, Pt500, Pt1000
  • Insertion length 85 to 400 mm
JUMO HEATtemp - Screw-in RTD temperature probes for heat meters with connecting cable for direct mounting (type DS/DL)

JUMO HEATtemp

Screw-in RTD temperature probes for heat meters with connecting cable for direct mounting (type DS/DL) Basic type: 902428
RTD temperature probes for heat meters are used for temperature measurement in closed pipeline systems. Direct mounting without additional immersion sleeve is recommended to achieve optimum thermal coupling to the measurement medium in the heating system.
  • Temp.: 0 to 180 °C
  • Sensor: Pt100, Pt500, or Pt1000
  • Insertion length: 25 to 60 mm/60 to 280 mm
JUMO Etemp B - Push-in RTD temperature probe with terminal head (form B) for standard applications

JUMO Etemp B

Push-in RTD temperature probe with terminal head (form B) for standard applications Basic type: 902123
Push-in RTD temperature probes are predominantly used for temperature measurement in liquid and gases. Application areas include air conditioning and refrigeration technology, heating and apparatus engineering, and process technology.
  • Temp.: -50 to +400 °C
  • Terminal head B or BUZ
  • Sensor: Pt100, Pt500, or Pt1000
JUMO Etemp B - Screw-in RTD temperature probe with terminal head form B

JUMO Etemp B

Screw-in RTD temperature probe with terminal head form B Basic type: 902023
Screw-in RTD temperature probes for standard applications are predominantly used for temperature measurement in liquids and gases. The application areas are, among others, in air-conditioning and refrigeration technology, as well as heating construction and apparatus engineering.
  • Temperature: -50 to +400 °C
  • Design type B and BUZ available
  • Temperature sensor: Pt100
JUMO STEAMtemp - Push-in RTD temperature probe (steam-tight)

JUMO STEAMtemp

Push-in RTD temperature probe (steam-tight) Basic type: 902830
Push-in RTD temperature probes are predominantly used for temperature measurement in sterilizers. Their special design permits applications in a pressurized atmosphere containing steam. Additional application areas include apparatus and laboratory engineering.
  • Pt100 temperature sensor
  • Temp.: -70 to +200 °C
  • Protection type IP69
JUMO FOODtemp - Food insertion RTD temperature probe

JUMO FOODtemp

Food insertion RTD temperature probe Basic type: 902350
Due to their special construction, these robust, steam-tight food insertion RTD temperature probes are especially suited to cooking, boiling, and baking processes in all food processing and food preservation applications. Further application areas are autoclaves and sterilizers.
  • Temp.: -50 to +260 °C
  • Pt100 temperature sensor
  • Two-wire/three-wire circuit as a standard feature
JUMO Wtrans B - Head transmitter with wireless data transmission

JUMO Wtrans B

Head transmitter with wireless data transmission Basic type: 707060
The wireless transmitter measures temperature and other process variables. The compact design type of the aerial battery housing allows for simple installation on type B DIN terminal head.
  • Radio frequency 868.4 MHz
  • Transmission interval (1 to 3600 s)
  • Range up to 300 m
JUMO Wtrans T - RTD temperature probe with wireless data transmission

JUMO Wtrans T

RTD temperature probe with wireless data transmission Basic type: 902930
The thermometer acquires temperatures in the operating range from -30 to +260 °C or -200 to +600 °C. This measured value is transferred wirelessly to the receiver of the Wtrans measuring system. This makes it ideal for mobile or stationary temperature measurement without any wiring work.
  • Temp.: -200 to +600 °C
  • Pt1000 temperature sensor
  • Insertion length: 30 to 10000 mm
Surface RTD temperature probes - with connecting cable

Surface RTD temperature probes

with connecting cable Basic type: 902550
Surface RTD temperature probes are used in closed pipe systems or on other round and flat surfaces. The probes can be installed with ease using tightening bands or cable ties, which means that mechanical modification of the measuring location is not necessary.
  • Two-wire or three-wire circuit
  • Sensor Pt100, Pt500, or Pt1000
  • Temp.: -50 to +260 °C
RTD temperature probes - for channel mounting

RTD temperature probes

for channel mounting Basic type: 902524
Channel RTD temperature probes for air conditioning technology are predominantly used for temperature measurement in air channels and outdoors. Various device versions made of plastic with different protection types are available for the respective measuring task.
  • Insertion length 50 to 500 mm
  • Sensor: Pt100, Pt1000, Ni1000, amongst others
  • Temp.: -50 to +200 °C
Mineral-insulated RTD temperature probe - With connecting cable according to DIN EN 60751

Mineral-insulated RTD temperature probe

With connecting cable according to DIN EN 60751 Basic type: 902250
Mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, and in engine manufacturing due to their flexibility and easy mounting.
  • Temp.: -50 (-200) to +600 °C
  • Temperature sensor: Pt100 or Pt1000
  • Response time: t0.5 from 0.7 s
JUMO HEATtemp - Push-in RTD temperature probe for heat meters with connecting cable for thermowells (type PS/PL)

JUMO HEATtemp

Push-in RTD temperature probe for heat meters with connecting cable for thermowells (type PS/PL) Basic type: 902438
RTD temperature probes for heat meters are used for temperature measurement in closed pipeline systems. As the probes are installed in thermowells, emptying the system for regular replacement at the end of the certification period is no longer necessary.
  • Temp.: 0 to 180 °C
  • Sensor: Pt100, Pt500, or Pt1000
  • Insertion length: 45 to 85 mm / 85 to 450 mm
Screw-in RTD temperature probe - With plug connector according to DIN EN 175301
H2 Signet

Screw-in RTD temperature probe

With plug connector according to DIN EN 175301 Basic type: 902044
Vibration-resistant screw-in RTD temperature probes allow temperatures to be measured under pressure in engines and compressors as well as in plant engineering and shipbuilding.
  • Pt100 temperature sensor
  • Temp.: -50 to +260 °C
  • Two-wire or four-wire circuit
RTD temperature probe - For the food and pharmaceutical industry
H2 Signet

RTD temperature probe

For the food and pharmaceutical industry Basic type: 902810
The RTD temperature probes can be built with terminal heads made of either stainless steel, aluminum die-cast, or plastic. Various process connections are available for the different requirements of sub-areas in the food and pharmaceutical industry.
  • Stainless steel terminal head
  • Temp.: -50 to +250 °C
  • Insertion length 25 to 400 mm
Screw-in RTD temperature probe - With connecting cable
H2 Signet

Screw-in RTD temperature probe

With connecting cable Basic type: 902050
Screw-in RTD temperature probes with connecting cable are used in such fields as air-conditioning and refrigeration technology, heating and furnace construction, and apparatus engineering.
  • Two-wire, three-wire, four-wire
  • Temp.: -50 to +400 °C
  • Pt100 temperature sensor
Mineral-insulated RTD temperature probe - With terminal head form J according to DIN EN 60751

Mineral-insulated RTD temperature probe

With terminal head form J according to DIN EN 60751 Basic type: 902230
Mineral-insulated RTD temperature probes are used in chemical plants, power plants, pipelines, and in engine manufacturing due to their flexibility and easy mounting.
  • Temp.: -50 (-200) to +600 °C
  • Pt100 temperature sensor
  • Response time: t0.5 from 0.7 s
Push-in RTD temperature probe - With bayonet fastener

Push-in RTD temperature probe

With bayonet fastener Basic type: 902190
The special shape of the probe tip makes these temperature probes suitable for use in flat and pointed drilled holes. They are predominantly used for temperature measurements in solid bodies, friction bearings, and tools (e.g. in the plastics industry).
  • Temp.: -50 to +400 °C
  • Insertion length 20 to 190 mm
  • Pt100 temperature sensors
RTD temperature probe - For devices and plants tested according to DIN EN 14597

RTD temperature probe

For devices and plants tested according to DIN EN 14597 Basic type: 902006
This type of RTD temperature probe may be used in connection with temperature control and limitation devices tested according to DIN EN 14597 (DIN 3440) in heat transmission systems according to DIN 4754.
  • Two-wire as standard
  • Temperatures up to 700 °C
  • Pt100 temperature sensor
JUMO plastoSENS T01 - Voltage-resistant plastic temperature probe

JUMO plastoSENS T01

Voltage-resistant plastic temperature probe Basic type: 904001
This especially developed transformer probe can be used in electric motors or in other high-voltage environments. In contrast to metallic temperature probes, it is made of plastic and can therefore be installed in the insulation layer without any problems.
  • Temp.: -50 to +200 °C
  • Nominal voltage: up to AC 3500 V
  • SMD, NTC, PTC, or Pt sensor
JUMO plastoSENS T03 - Steam-tight plastic temperature probe

JUMO plastoSENS T03

Steam-tight plastic temperature probe Basic type: 904003
The JUMO plastoSENS T03 solves the problem of insufficient leak-tightness from conventional probes. Since the special plastics used in the injection molding process form an adhesive bond, it is completely sealed, even at the critical point of the cable outlet – ideal for sterilization applications.
  • SMD, NTC, PTC, or Pt sensor
  • Temp.: -50 to +200 °C
  • Protection type IP69K
JUMO plastoSENS T02 - Vibration-resistant plastic temperature probe

JUMO plastoSENS T02

Vibration-resistant plastic temperature probe Basic type: 904002
The sensor of the JUMO plastoSENS T is completely enclosed in plastic, which means that it offers extremely high vibration resistance. This eliminates the need for time-consuming positioning of conventional probes in harsh environmental conditions caused by moving components (e.g. motors of vehicles or machines).
  • Temp.: -50 to +200 °C
  • SMD, NTC, PTC, or Pt sensor
  • Heavy-duty plastic that can withstand high loads
JUMO plastoSENS T04 - Surface-optimized plastic temperature probe

JUMO plastoSENS T04

Surface-optimized plastic temperature probe Basic type: 904004
Compared with conventional pipe surface probes, the surface-optimized plastic temperature probe is completely adapted to the pipe diameter. As a result, it is ideal for acquiring the temperature in pipes with a small diameter, without causing flow changes.
  • Temp.: -40 to +180 °C
  • Sensor: Pt100 or Pt1000
  • Clip mounting
JUMO PROCESStemp - RTD temperature probes for process technology with Ex approval
H2 Signet

JUMO PROCESStemp

RTD temperature probes for process technology with Ex approval Basic type: 902820
RTD temperature probes for process technology are predominantly used for temperature measurement in liquids and gases. They consist of a protection fitting according to DIN 43772 with various process connections, a terminal head, and an interchangeable measuring insert.
  • Temp.: -200 to +600 °C
  • Available with an Ex transmitter
  • Interchangeable measuring insert
Push-in RTD temperature probe - With connecting cable

Push-in RTD temperature probe

With connecting cable Basic type: 902150
Push-in RTD temperature probes are predominantly used for temperature measurement in liquid and gases. Application areas include the air-conditioning and refrigeration industry, laboratory technology as well as heating, furnace, and apparatus engineering.
  • Temp.: -50 to +400 °C
  • Sensor Pt100 or Pt1000
  • Optionally with bend protection
JUMO Wtrans E01 - Measuring probe for humidity, temperature, and CO2

JUMO Wtrans E01

Measuring probe for humidity, temperature, and CO2 Basic type: 902928
The Wtrans E01 measuring probe is used in combination with a Wtrans receiver for recording measured values using digital sensors for humidity, temperature, and CO2. Other measurands can be derived from the determined measured values.
  • Measuring range: 0 to 100 % RH
  • CO2 measuring range: 0 to 10000 ppm
  • Open air range 300 m
Level and temperature probes - For commercial vehicles

Level and temperature probes

For commercial vehicles Basic type: 902880
This product is for monitoring the level and temperature of engine oil and gearbox oil as well as for supporting vehicle diagnosis in modern commercial vehicles, construction machines, and agricultural machines.
  • Measuring range: 50 mm or 62 mm
  • Medium temperature: -40 to +140 °C
  • Optional temperature sensor
JUMO TDA-300 and JUMO TDA-3000 - Handheld thermometer

JUMO TDA-300 and JUMO TDA-3000

Handheld thermometer Basic type: 702540
The TDA-300 and TDA-3000 are portable digital temperature display devices. They are used in conjunction with precision thermocouples or precision RTD temperature probes for temperature measurement on surfaces, in liquids, in melts, and in plastic materials.
  • Replaceable probes
  • RTD temperature probe and thermocouples
  • Battery operating life 400 hours

item items, maximum number of items reached

Buy resistance thermometers

The most important background information