Temperature probes & sensors

Platinum resistance sensors (Pt100 and Pt1000) are the choice when accuracy and long-term stability matter, for example in baths, incubators and calibration work. One example is the Pt100 stainless steel probe, 250 × 4 mm. A Pt1000 has a higher base resistance, so long cables affect the reading less. Thermocouples cover wider temperature ranges and respond fast, but they are less accurate. A good example is the waterproof type K immersion and penetration probe. The sensor type also has to match your instrument's input; see digital thermometers.

Choose by what you are measuring. A penetration probe has a pointed tip for core temperatures in food, gels or soft materials, for example the waterproof Pt100 immersion and penetration probe with official approval. A surface probe has a flat contact face for plates, housings and heating blocks, such as the Pt100 class A surface probe, stainless steel. For pipes, a clamp version is more practical. An air probe leaves its sensor exposed so it reacts quickly to air temperature, as with the robust type T air probe. Matching instruments are in digital thermometers.

The class describes how far a platinum sensor may deviate from its nominal value. Class A has a tighter tolerance than class B, and that tolerance grows as you move away from 0 °C. Choose class A for calibration, reference work and processes with narrow specifications, for example the Pt100 class A surface probe. Class B is enough for general monitoring where a few tenths of a degree make no difference. Check the exact tolerance on the product page, because it also depends on the range in which you use the probe. For help comparing, write to sales@luminixhealth.com.

A probe only works if your meter accepts both its sensor type and its connector. A type K thermocouple will not read on a Pt100 input, and the reverse is also true. Many probes also use connectors specific to the instrument maker or are digital, so the plug has to match your meter too. Some probes are designed for one particular thermostat or meter, and the product page says so. Meters are in digital thermometers. Send us your meter model at sales@luminixhealth.com and we will confirm which probe fits.

A temperature probe is the sensor, Pt100, thermocouple or thermistor, that a meter or a logger reads. The probe, not the display, is what is calibrated. The sheath material and the response time matter in a liquid versus a block.

A thermometer reports a temperature. A liquid-in-glass thermometer is a calibrated column. A digital thermometer is a sensor and a display, and the sensor, not the display, is what is calibrated. An infrared thermometer reads a surface and depends on emissivity. A data logger stores the reading over time. Without a stated uncertainty and a calibration point, the number is only an indication. The scale is maintained by the BIPM and compared by EURAMET. Accreditation is BELAC.

This shelf belongs to Temperature measurement, inside Lab instruments. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Laboratory glass thermometers, Hygrometers & humidity meters, Data loggers, Temperature measurement accessories, Digital thermometers and Infrared thermometers. The category above this shelf is Temperature measurement.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

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