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2 Channel 7 Thermocouple Types Datalogger Water/Splash Proof

Dual Input, High Accuracy Datalogger/Thermometer


Item# HH506RA

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$328.00
5-9 C$311.60
10-24 C$305.04
25-49 C$291.92
50-99 C$285.36
100+ C$278.80

In stock

Lead Time (If not in stock): 6 weeks
Dual Input, High Accuracy Datalogger/Thermometer HH506RA HH506RA
  • 2-Channel Temperature Measuring
  • 7 Thermocouple Types
  • Triple Display with Setable Backlight
  • Triple Display with Setable Backlight
  • Save Data (128 Samples with Real-Time Data)
  • Datalogging (16 Sets, Max 1024 Data Capacity)
  • Time, Record Interval, APO Time Setting
  • Software Package Included (RS232C Cable and Disk, Model HH506RA Only)
  • °C/°F Switchable
  • 0.1 Resolution
  • Water/Splash Resistant, NEMA-4X,
  • Dustproof

HH506RA Model Options

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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.

Data Interface
Measurement Type
Input Type
Maximum Samples
Additional Feature


The OMEGA™ HH500RA is a low cost, feature-packed, portable, digital thermometer that measures K, J, R, S, T, E and N thermocouples. The unit has datalogging capacity in the save mode of 128 samples with real-time data and in the datalogging mode of 16 sets, with a maximum data capacity of 1024 records. Easy to use set-up instructions allow the user to measure a broad range of T/Cs, MAX/MIN, AVG, REL, Hold Function, T1/T2.

Temperature Range:
    K Type: (0.1°, 1° for above 2000°F) -200 to 1372°C (-328 to 2501°F)
    J Type: (0.1°, 1° for above 2000°F) -210 to 1200°C (-346 to 2192°F)
    T Type: (0.1°) -200 to 400°C (-328 to 752°F)
    E Type: (0.1°) -210 to 1000°C (-346 to 1832°F)
    R Type: (1°) 0 to 1767°C (32 to 3212°F)
    S Type: (1°) 0 to 1767°C (32 to 3212°F)
    N Type: (0.1°, 1° for above 2000°F) -50 to 1300°C (-58 to 2372°F)
According to temperature standard ITS-90
    K/J/T/E Type:
    ±(0.05% rdg + 0.3°C) on -50 to 1370°C
    ±(0.05% rdg + 0.7°C) on -50 to -210°C
    ±(0.05% rdg + 0.6°F) on -58 to 2501°F
    ±(0.05% rdg + 1.4°F) on -58 to -346°F
    N Type:
    ±(0.05% rdg + 0.8°C) on -50 to 0°C
    ±(0.05% rdg + 0.4°C) on 0 to 1300°C
    ±(0.05% rdg + 1.6°F) on -58 to 32°F
    ±(0.05% rdg + 0.8°F) on 32 to 2372°F
    R/S Type:
    ±(0.05% rdg + 2°C) on 0 to 1767°C
    ±(0.05% rdg + 4°F) on 32 to 3212°F
Resolution: 0.1°C/1°C (0.1°F/1°F)
Power: 9 V battery (included)
Datalogger Capacity:
    Save Data: 128 samples with time stamp
    Datalogger: 1024 data capacity(interval 1 sec to 23:59:59)
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Rated 1 out of 5 by from Not worthy of the Omega name. Won't hold calibration. Wasn't even in spec when it was first received. Receptacles for the thermocouples have lost tension and connectors will not stay in contact.
Date published: 2017-02-15
Rated 3 out of 5 by from Good, but imperfect I have experienced none of the issues previously reported here. However, I have twice tried to log more than 24 hours of data. Both times, logging stopped and I didn't know until it was too late. I never had a problem with short logs (1min-4 hours), even when filling multiple files with data. With adjusted setting, I should have had no more data points in my 24-hr logs, yet the logs still crashed after a very short time
Date published: 2018-03-28
Rated 5 out of 5 by from Very handy Easy to use and works great. Responds immediately to a change in temperature. The dual system is very convenient.
Date published: 2018-06-18
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loading all QA

can I just log T1 (and not T2)?

Asked by: engtech
Both T1 and T2 are recorded there is no way to adjust for one or the other.
Answered by: ANBENG
Date published: 2020-04-04

Is there an option to download logged data to my PC? It seems I couldn't find an I/O interface

Asked by: ChEngineer Boy
The HH506RA comes with the Software and communication cable when purchased which allows downloading to computers. If it was lost you can order HH506RA-USB-SW to replace it.
Answered by: Applications Engineer ANB
Date published: 2020-07-13

How often the HH506RA should be calibrated and how should it be calibrated?

Asked by: Jack001
Thank you for your inquiry. We recommend an annual calibration (once a year).
Answered by: Engineer CB
Date published: 2020-07-16

The data limit is 1024. Is that 1024 lines of data, with each line containing time, T1, and T2? Or is it 1024 total temperatures, so for logging both temperatures, it would be 512 T1 values and 512 T2 values? Thanks

Asked by: engtech
The data is stored in 16 Groups and 64 Data slots of measured T1 and T2 values with a total of 1024 lines.
Answered by: ANBENG
Date published: 2020-04-04


Asked by: Anonymous
Thank you for your inquiry. Unfortunately, this product is not FDA compliant.
Answered by: Application Engineer JB
Date published: 2019-09-17

I have a HH506R to which I have 2 type K thermocouples (CH+, AL-), the T2 display is stuck as type E and won't change when I press the "type" button even when the main display is showing T2. Kindly help. ( Sorry if not appropriate thread for this Q)

Asked by: srikar
Thank you for your inquiry. Please try removing the battery, then re-install the battery and try to reset the unit, and reprogram the thermocouple type. If you still have issues, feel free to call our temperature group at 1-888-826-6342 or email to temp@omega.com
Answered by: Application Engineer JB
Date published: 2021-12-03

Can I download the software for the HH506RA? my computer does not have a CD drive

Asked by: Annemieke
Yes the SW can be found on Omega's FTP site for temperature products https://www.omega.com/en-us/ftp
Answered by: Applications Engineer ANB
Date published: 2020-11-05
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