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Four-Channel J,KT,E Thermocouple Data Logger with USB

Four Channel Handheld Data Logger Thermometer


Item# HH520

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $420.83
5-9 $399.79
10-24 $391.37
25-49 $374.54
50-99 $366.12
100+ $357.71

In stock

Lead Time (If not in stock): 7 weeks
Four Channel Handheld Data Logger Thermometer HH520 HH520
  • Measures Types J, K, T, E Thermocouples
  • Large Backlit Display Shows All Channels
  • USB Interface -- PC Software Included
  • High Accuracy, Fast Response

HH520 Model Options

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Input Type
Display Type
Supply Power
Number of Channels
Communications Protocol

The HH520 is a 4 channel handheld data logger/thermometer that accepts Types J, K, T and E thermocouples. Measurement settings and results are shown on the backlit LCD display. Data can be stored in the data logger and then downloaded to the computer or directly saved on the computer through the USB interface in real time. With the exclusive software, recording/ recalling of data and programming of logging parameters can be done directly through a PC. There is a save dialog window in the software where the data file name and file type to save can be selected. There are three types of file format that can be selected: binary file (*.ghf), text file(*.txt) and Excel® format file (*.csv). The .txt file format can be opened by the HH520 software and any other word processor program like Microsoft® Word or Notepad. The .csv file format can be opened by the HH520 software and also by Microsoft Excel.

The *.ghf file uses much less disk space to save the data than the other two file formats, but it can only be used in the HH520 software.

Measurement Range:
    J: -200 to 1000°C (-328 to 1832°F)
    K: -200 to 1372°C (-328 to 2501°F)
    T: -200 to 400°C (-328 to 752°F)
    E: -200 to 750°C (-328 to 1382°F)
Accuracy (Does Not Include Thermocouple Sensor Error): ±(0.1% rdg + 0.7°C)/±(0.1% rdg + 1.4°F) between 18 to 28°C (64 to 82°F); ±(0.4% rdg + 0.7°C)/±(0.4% rdg + 1.4°F) below -100°C (-148°F)
Resolution: 0.1°C <600°C (0.1°F <1000°F); 1.0°C ≥ 600°C (1.0°F ≥ 1000°F)
Temperature Coefficient: 0.01% of reading + 0.05°C per °C(<18 or >28°C)
Input Protection: 30 Vrms max
Sample Rate: 2 samples/sec
Power: Four 1.5 V “AAA” batteries (included); external power through USB interface
Battery Life: 100 hrs approx (alkaline batteries)
Operating Environment: 0 to 50°C (32 to 122°F); 10 to 90% RH non-condensing
Storage Environment: -20 to 60°C (-4 to 140°F); 10 to 75% RH
Dimensions: 187 H x 75 W x 29 mm D (7.36 x 2.95 x 1.14')
Weight: 290 g (10.2 oz)
Software: Windows® XP/Vista/7/8/10
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Rated 4 out of 5 by from Value and practical Value and practical. In stock and prompt delivery. Software may need one more option on grid layout: such as smaller checker board squares on the background to identify data point location. A longer USB cable would be better. On Windows XP, each time the logger is manually powered off and on again and then the hardware driver is automatically installed while USB was plugged in, but need to uninstall and install it again one more time to avoid installation issue. This would need to state in the manual.
Date published: 2018-03-10
Rated 5 out of 5 by from Data Logger Exactly what I was looking for. Had four channels which I needed.
Date published: 2023-08-14
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Does this reader take flat-type TC connections?

Asked by: VGEng
Thank you for the inquiry. Yes, this meter accepts the flat pins style connectors. Example connector pn is SMPW-K-M. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-04-26

what is the power supply of this item HH520-CAL-3 ? i need a temperature datalogger but it must be charged by wire conexion directly to electricity, Not only by batteries.

Asked by: Erika22
Thank you for your inquiry. The item HH520-CAL-3 only runs on four 1.5 V &ldquo;AAA&rdquo; batteries; external power through USB interface. It does not have an AC to DC adaptor.
Answered by: Application Engineer SP
Date published: 2023-02-13

Would the rated sampling rate (Sample Rate: 2 samples/sec = 2Hz) applied to all 4 channel at the same time? if less than all 4 is used, can I increase the sampling rate?

Asked by: AnhT
The channels would measure sequentially so using 1 channel will achieve the 2 Hz rate and if the other channels are measuring it would need to have all used channels completed before the next measurement is made on the first channel. There isn't any way to adjust the sampling rate.
Answered by: ANBENG
Date published: 2019-11-24

How often does it require a calibration according to the manufacturer? Does it last for one year or more?

Asked by: Yigal
There is no defined time period how long a calibration will remain valid. It is recommended to do a re-calibration at least once per year.
Answered by: ANBENG
Date published: 2020-02-21

Hello, I have the HH520 datalogger thermometer. Can I find a driver for this device online? My computer does not recognize the USB device.

Asked by: Vatsan
The Software is available on the Omega website at under Temperature products.
Answered by: ApplicationsEngineerANB
Date published: 2020-06-24

Does this come with an initial calibration certificate?

Asked by: doug1234
The standard part number, HH520 does not come with a Certificate of Calibration. If a certified meter is require, HH520-CAL-3 needs to be ordered.
Answered by: Temperature
Date published: 2020-01-27

What is the length of the thermocouples? how many are included? and what is the model of the thermocouples to ask for more

Asked by: Efra80
The Thermocouples included when purchasing are Type K 40&quot; long. The part number for more would be 5SC-GG-K-30-36.
Answered by: ApplicationsEngineerANB
Date published: 2022-10-28

What advantage does this new 4-channel unit have over the older OM-HL-EH-TC 8-channel ?? What makes it worth $50 more ??

Asked by: Silver Wizard
Thank you for your inquiry. Biggest advantage of the HH520 is the accuracy spec; HH520 Accuracy is specified for ambient temperatures between 18&deg;C (64&deg;F) and 28&deg;C (82&deg;F). The specifications do not include thermocouple sensor error. &plusmn; (0.1% of reading+0.7&deg;C) OM-HL-EH-TC &plusmn; ( 0.8 C + 0.2 % Reading ) Best regards RS
Answered by: RSEngineer
Date published: 2021-04-09
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