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1 Channel High Precision Handheld RTD with Probe Datalogger

Precision RTD Handheld Data Logger Thermometer


Item# HH376

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Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $375.57
5-9 $356.79
10-24 $349.28
25-49 $334.26
50-99 $326.75
100+ $319.23

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Lead Time ( If not in Stock): 2 weeks

Precision RTD Handheld Data Logger Thermometer HH376 HH376
  • High Accuracy with 0.01C/F Resolution
  • Large Backlit Dual LCD Display
  • MAX/MIN/HOLD Function
  • 16,000 Record Data Logger
  • USB Cable Included
  • Windows Software
  • Auto Power Off
  • User Offset Adjustable
  • Low Battery Indicator
  • Tilt Stand
  • Precision 4 Wire 100 Ω Platinum RTD Probe Included
5 Year Warranty

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Measurement Type
Input Type
Maximum Samples
Data Interface
Max Sampling Rate
Additional Feature

Product Specs

The HH376 is a high accuracy RTD thermometer plus a powerful data logger. The unit can store up to 16,000 records at programmed intervals. Windows® based software and USB interface cable are included to allow real time or recorded data to be read by a PC through the USB or RS232 port (RS232 cable is optional). HH376 is supplied with a precision 4-wire RTD probe with automatic locked push-pull connector for easy connection.

Numerical Display:
5-digit LCD
Measurement Range: -100 to 400°C (-148 to 752°F)
Resolution: 0.01°C (0.02°F)
Sensor Types: Platinum resistance temperature sensor for pt-100 4 wires, ALPHA = 0.00385

Operating Temperature and Humidity:
0 to 50°C (32 to 122°F); 0 to 80% RH
Storage Temperature: -10 to 60°C (14 to 140°F); 0 to 80% RH; altitude up to 2000 meters
Accuracy: At (23 ±5°C)
Range Accuracy: -100 to 400°C ±(0.05% reading + 0.1°C); -148 to 752°F ±(0.05% reading + 0.2°F)
Temperature Coefficient: For ambient temperatures from 0 to 18°C and 28 to 50°C, for each °C ambient below 18°C or above 28°C add the following tolerance into the accuracy spec. 0.005% of reading + 0.01°C (0.005% of reading + 0.02°F)
Sample Rate: 2 times per second
Dimensions: 185 L x 65 W x 36 mm D (meter only)
Weight: 360 g approx.
Power Requirement: 9V battery (included)
AC Adaptor: 9 Vdc (7 to 10V max)/20 mA
min (plug diameter: 3.5 x 1.35 mm)
Battery Life: Approx. 100 hrs

Sensor Type:
Pt100 (4 wire)
Accuracy: Class A13, temperature probe
Measurement Range: -100 to 400°C (-148 to 752°F)
Sheath Diameter: 5.0 mm (0.2')
Sheath Length: 230 mm (9.05')
Cable Length: 1500 mm (59.0')

Rated 5 out of 5 by from Very accurate instrument After using numerous instruments to measure pipeline temperatures, I have finally found the device that accurately does.
Date published: 2017-11-28
Rated 5 out of 5 by from High accuracy and inexpensive Great little handheld with 2 digits of precision after the decimal. Data logging for charting responses, easy connect to computer for download of data. We use it to monitor differential temps near 100C and it’s very repeatable. Also nice is the 120V adapter so no worry about battery life. Highly recommend.
Date published: 2018-06-09
Rated 5 out of 5 by from Price quality Price Quality, Practical dan easy to use. I will give good use.
Date published: 2018-01-08
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What would be the combined tolerance in °C @ 400°C? I'm getting conflicting answers with the probe being an A Grade.

Asked by: Earl
please provide calculation. but I'm getting answer +/- 1.25°C @ 400°C
Answered by: bhakti
Date published: 2020-12-04

What is the part number for the sensor connector? I want to make my own miniature probe

Asked by: Jesse
Thank you for your inquiry. HH376-CONN is the part number.
Answered by: CB Engineer
Date published: 2020-10-09

Can you explain the accuracy spec? It reads 23+/-5°C, with no spec, then a range spec for -100 to +400°C.

Asked by: RPMS
The 23 +/-5 C is the ambient temperature the meter needs to be in to meet the accuracy specification over the measurement range.
Answered by: Applications Engineer AB
Date published: 2020-07-13

NIST traceable option?

Asked by: Bumbleguy
Thank you for your inquiry. Unit is supplied with a NIST certificate (No Points). For an additional cost you can order with a NIST certificate with points.
Answered by: Application Engineer JB
Date published: 2020-04-06

please provide accuracy calculation for data logger with the probe? I have calculated accuracy by using the formula given in the below answer where I'm getting answer +/- 1.25°C @ 400°C.

Asked by: bhakti
Your value is correct and here is the calculation: +/-(0.15+.002(400C)) + 0.3C = 1.25C probe plus meter accuracy
Answered by: Applications Engineer AB
Date published: 2020-12-08

Sampling rate is 2 per seconds, what is the logging interval for this device?

Asked by: Chase
Thank you for your inquiry. The logging interval minimum 1 second.
Answered by: Engineer CB
Date published: 2020-05-06

I see that the probe is stamped with a -100C to +400C range. Does this include the plastic handle and part of the cable, or just the metal probe tip? If not the whole thing, what temperature can the probe handle tolerate?

Asked by: listeningnick
Thank you for the inquiry. Max service temperature of the handle is 80 C. The 400 C limit is for the tip of the probe. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-11-20

Hi is there any documentation available for the rs232 protocol spec? It'd be nice to be able to write our own custom software in say python.

Asked by: jackie277
The serial communication protocol may be available and contact the Temperature Engineering group at temp@omega.com for further assistance.
Answered by: ANB ENG
Date published: 2020-08-31
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