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pH/mV/Temperature Meter Kit w/ Optional SD Card Data Logger

Handheld pH/mV Meter and pH Electrode Kit


Item# PHH444

In stock

Lead Time (If not in stock): 10 weeks
Handheld pH/mV Meter and pH Electrode Kit PHH444 PHH444
  • Professional look design accurate portable meters with large LCD display, BNC connector.
  • All electrodes with BNC connector compatible to any other electrodes.
  • Hold function, low battery icon indicator, automatic power off in 15 minutes and may be disabled.
  • Built-in different temperature compensation selectable: Thermistor 30K, 10K ohm and not 25.0 (manual compensation).

PHH444 Model Options

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Measurement Type
Supply Power

  • Auto Power Off Yes
  • Batteries Included Yes
  • Battery Size AAA
  • Battery Type Alkaline
  • Data Logging 8 GB Real Time SD Card Data Logger on DL Model
  • Display Type Large LCD Display
  • Power Source Battery or AC adaptor
  • Calibration Certificate Included
  • Meter Style Handheld
  • Number of Inputs 2
Handheld pH/mV Meter and pH Electrode Kit
The portable pH meter, PHH444 provides you with affordable, convenient solutions for basic pH or mV measurements. The OMEGA PHH444 portable pH meter is easy to operate and is equiped with automatic temperature compensation. The kit includes the meter, pH Sensor, pH 4, pH 7, and pH 10 calibration solution, calibration certificate, 3 AAA batteries and rugged carrying case. Available with 8GB SD Card Data Logging on PHH444-DL
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Rated 1 out of 5 by from Unreliable data, outdated manual, klunky interface This unit has been a huge waste of time and money. A whole host of issues slowed down test and the unit ultimately failed to record data wasting test resources. Firstly, the SD card that was shipped with the unit does not work with the meter. After troubleshooting and calling tech support (which also didn't know the issue) I found a SD card that worked. The commands to record data don't match the manual. After trial and error I got the unit to record data files. Assuming that it would operate as I verified, I started my test and occasionally checked to ensure the unit was still recording data via the screen. However, upon completion of the test, the card only stored a whopping 20 data points (10 minutes) for a 8+ hour test. Not only am I out $500, I wasted my time and resources setting up a test that now has no data.
Date published: 2023-08-14
Rated 1 out of 5 by from Bad PH meter The unit new when open had some kind of oxidation or corrorition on the electrode had trouble getting it returned. We followed the calibration instruction and could not get a good reading with this pH unit, call support and they said after a few minutes of tests he said there must be something wrong with the unit to send the unit back. I was given a case # and waited for a Return Authorization it never came shipped it back to Omega. I just want my money back for this unit. Jack
Date published: 2023-06-28
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Can I disable the "15min shutoff" feature? I need to monitor a reaction over an 8 hour period. The data logging function would not be helpful if the meter keeps shutting off. Thanks.

Asked by: Owen
Thank you for your inquiry. Unfortunately, it cannot or does not have a disable feature available.
Answered by: Application Engineer JC
Date published: 2023-04-07

Do you have a different manual for the PHH444 other than what is available online? What is available online is the worst set of instructions that I have ever seen. Obviously translated from another language without any vetting for ease of understanding.

Asked by: Bill101
Thank you for your inquiry! Unfortunately, we do not have another manual for this unit. If you have any specific questions regarding setup or operation please feel free to contact us using the email
Answered by: Application Engineer JM
Date published: 2022-04-06

What is the compatible temperature probe for ATC for this meter?

Asked by: matt34
Thank you for your inquiry for the pH meter. The pH probe will have the built-in ATC for temperature compensation as PHE-44 with NTC 10K
Answered by: Application Engineer JC
Date published: 2022-07-07
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Replacement pH Electrode
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AC Adaptor
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