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Hanna Instruments Canada
Customer Support: (800) 842-6629

4-Wire Pt100 Thermometer - HI955501

The 4-Wire Pt100 Thermometer – HI955501 is housed in a compact, ergonomic casing with a wrist-strap to make it easy for carrying in a laboratory or plant. The HI955501 offers a range of probes for measurement in gases, air, liquid, and semisolids. Optional Pt100 probes cover a wide temperature range from -30 to 350℃.

  • Auto-ranging
  • Missing Probe Indicator
  • Interchangeable Pt100 Probes


The 4-Wire Pt100 Thermometer – HI955501 is a rugged and highly accurate meter that can be used indoors or outdoors with a variety of interchangeable Pt100 probes. The HI955501 automatically adjusts the resolution of a reading based on the temperature range and also features a missing probe indicator.

Features at-a-glance

Auto-ranging – The HI955501 automatically adjusts the resolution of a reading based on the temperature range. From -199.9 to 199.9℃ the resolution is 0.1℃. For readings outside of this range, from -200 to 850℃, the resolution is 1℃.

Interchangeable Pt100Probes – Several Pt100 type probes are available to meet the specific needs of users. Hanna Instruments offers the HI768 series that includes probes to measure the temperatures of gases, air, liquid, and semisolid samples.

Missing Probe Indicator – The HI955501 features a missing probe indicator to alert the user if no temperature probe is detected.

Low Battery Indicator – When the battery level is below 10%, a “V” warning symbol is displayed to indicate low battery condition

Additional information

Weight 0.39 kg



SKU HI955501
Name 4-Wire Pt100 Thermometer – HI955501
pt100 Temperature Range -199.9 to 199.9°C; -200 to 850°C
pt100 Temperature Resolution 0.1°C (-199.9 to 199.9°C); 1°C (-200 to 850°C)
pt100 Temperature Accuracy ±0.2°C and ±1 digit (-120.0 to 199.9°C); ±1°C and ±1 digit (-170 to 450°C); ±1% FS and ±1 digit (outside) (excluding probe error)
Battery Type/Life 9V / approximately 150 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 143 x 80 x 38 mm (5.6 x 3.2 x 1.5”)
Weight 320 g (11.3 oz)

Ordering Info

HI955501 is supplied with battery and instructions.


4-Wire Pt100 Thermometer – HI955501