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1 Channel RTD IP67 Waterproof Temperature Meter with Probe

PT100 RTD Handheld Thermometer
  • RoHS Icon
  • CE Approved
  • UKCA


Item# HH370

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $547.66
5-9 $520.28
10-24 $509.32
25-49 $487.42
50-99 $476.46
100+ $465.51

In stock

Lead Time (If not in stock): 6 weeks
PT100 RTD Handheld Thermometer HH370 HH370
  • IP67 Waterproof Construction
  • NIST-Traceable Certificate Included (No Points)
  • Selectable Pt100 or Pt1000 Input
  • Max/Min/Average Temperature Recording

HH370 Model Options

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Input Type
Minimum Temperature Measurement
Maximum Temperature Measurement
Input Connection Type
Display Type
Accuracy Value
Supply Power
Number of Channels

The HH370 Pt100 & Pt1000 Digital Thermometer is a waterproof, highly accurate handheld RTD temperature meter that uses the dedicated probes RTD-370-PT100 and RTD-370-PT1K. These probes have a water-resistant connection and a measurement range of -100 to 300°C (-148 to 572°F). The 100 Ω probe is included with the unit.

Accuracy (at 23 ±5°C): ±0.1% of rdg + 0.4°C (±0.1% of rdg + 0.8°F)
Temperature Coefficient: For ambient temperatures from 0 to 18°C and 28 to 50°C, add 0.01% of rdg + 0.03°C or 0.01% of rdg + 0.06°F
Probe Accuracy: IEC751, Class A ±0.15°C ±0.002t (t = measurement temperature)
Resolution: 0.1°C (0.1°F)
Measurement Range: -100 to 300°C (-148 to 572°F)
Numerical Display: 4-digit LCD
Input Type: Pt100 and Pt1K RTD, alpha = 0.003850, 4-wire
Measurement Current: Approx. 0.53 mA
Maximum Voltage at Temperature Input: 60 Vdc or 24 Vrms AC
    Operating Temperature/Humidity: 0 to 50°C (32 to 122°F); 0 to 80% RH
Storage Temperature and Humidity: -10 to 60°C (14 to 140°F); 0 to 80% RH
Sample Rate: 2 times per second
Battery Life: 100 hours with alkaline batteries
Battery Type: 3 'AAA' (included)
Weight: 175 g (6.2 oz)
Dimensions: 150 H x 66 W x 31 mm D (5.9 x 2.6 x 1.2')
Connection: Water-resistant 5-pin connector
Overall Temperature Probe Length: Approx. 120 mm (4.72') 304 SS Length: 100 mm (3.94')
Sensor Cable Length: 1500 mm (59.06')
Sensor Diameter: Approximately 3.2 mm (0.125')

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Rated 5 out of 5 by from Stable, accurate and surprise extra This unit has excellent accuracy specs and works perfect for the narrow temperature range I need it for. Not mentioned on the website description was a built in function to memorize a reference temp and monitor the change in temperature. This is perfect for my application and I’m very pleased with the unit.
Date published: 2018-01-17
Rated 5 out of 5 by from The HH370 is just what I needed I bought this temperature meter about a month ago. I needed to insure that a low cost digital thermometer was measuring correctly. The HH370 allowed me to quickly and easily confirm the temperature measurements. I plan to use the HH370 as a temperature standard which will allow me to adjust other low cost temperature controllers and meters to insure that they are measuring accurately. I did purchase the small carrying bag along with the meter. I was disappointed with the bag due to the fact that the probe will not fit in the bag. The probe is too long. This tends to render the bag useless since I prefer to keep the meter and the probe together as one unit.
Date published: 2017-11-01
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Can I order the HH370 RTD Thermometer with its probe calibrated at two points 0 & 100 C with NIST cert included ?

Asked by: Anonymous
Calibrating at customer specific temperatures needs to be priced by the Temperature Engineering group. You can send your request to and someone will assist you.
Answered by: ApplicationsEngineerANB
Date published: 2021-06-04

What is the probe material of construction of the contacting surface?

Asked by: Nicole
The probe section that houses the temperature sensing element is made from 304 Stainless Steel.
Answered by: ApplicationsEngineerANB
Date published: 2022-07-20

Can RTD Pt100 &amp handheld measure when extend the Rtd PT100 with cable to 100m far away? Is it suitable with an explosion proof ExiaI?

Asked by: Phuc
The meter and probe are an integral system for this meter and there are no extension cables offered. In general it would not be recommended to run long lengths of RTD cable as the wire would add additional Resistance affecting the accuracy of the measurement.
Answered by: ApplicationsEngineerANB
Date published: 2020-06-25
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Replacement 100 O RTD probe
1 In Stock
Optional 1000 O RTD probe
0 In Stock

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