Skip to search Skip to main content Skip to navigation

Call us at 1-888-826-6342

We noticed you are from . Visit your local site for regional offers and live support.

1 Channel High Precision Handheld RTD with Probe Datalogger

Precision RTD Handheld Data Logger Thermometer
  • RoHS Icon
  • CE Approved
  • UKCA


Item# HH376

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $466.63
5-9 $443.30
10-24 $433.97
25-49 $415.30
50-99 $405.97
100+ $396.64

In stock

Lead Time (If not in stock): 6 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

HH376 Model Options

View all models

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

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

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')
loading all models
loading all reviews
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 Great Product Great product, easy to connect and use software in the lab.
Date published: 2024-01-26
Rated 5 out of 5 by from Irreplaceable Tool Needed The Omega RTD Handheld Data Logger Thermometer allows us to retrieve the data we need to fine tune our testing systems. We use it here at an engineering firm where we design and manufacture advanced testing systems for material characterization. We consider the RTD Thermometer an irreplaceable tool we need to do our job.
Date published: 2022-08-09
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
  • y_2024, m_6, d_19, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_en_US, sid_HH376, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 17ms
loading all QA

Is this available with a NIST traceable calibration cert? If so, how many points are included in the calibration?

Asked by: Patrick S
The meter can be offered with a CAL-3 which is a 3 temperature point calibration part # HH376-CAL-3.
Answered by: ApplicationsEngineerANB
Date published: 2022-07-13

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: ApplicationsEngineerANB
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 for further assistance.
Answered by: ANB ENG
Date published: 2020-08-31

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) Is accuracy unit and probe, or unit only?

Asked by: DavNH
Hi DavNH, Thank you for the inquiry. Accuracy is for the meter only. Probe is accuracy class A ( 0.15 C +/- 0.2 % of reading) Best regards OMEGA
Answered by: NorwalkAE
Date published: 2020-05-27

Is there an equivalent OTS connector for this device? I am looking to create my own probe and the omega connector is out of stock.

Asked by: jsapers
Omega does not sell the connector as an accessory and only the entire probe is sold separately. Omega does not have the part number to buy the connector from another source.
Answered by: Application Engineer AB
Date published: 2021-06-22
  • y_2024, m_6, d_19, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_2, bvpage2n
  • co_hasquestionsanswers, tq_15
  • loc_en_US, sid_HH376, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 87ms
Precision 4 wire RTD probe (spare)
0 In Stock
Power adaptor (115 Vac)
0 In Stock
RS232 interface cable
9 In Stock
Spare USB interface cable
6 In Stock
Save Configuration