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  • VIDEO
PHM-295 Digital Combo pH & Temperature MeterGain Express
  • Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory (pH/Temperature Meter)
  • To view this video, download

Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory (pH/Temperature Meter)

4.1 out of 5 stars 406 ratings
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Purchase options and add-ons

Brand GAIN EXPRESS
Special feature High Accuracy
Colour Ph/Temperature Meter
Age range (description) Adult
Included components Battery
Display type LCD
Product care instructions Wipe Clean
Unit count 1.0 Count
Power source Battery Powered
Model name PHM-295

About this item

  • FEATURES: Large screen monitor with smart backlight which allows you to read easily even in dark sorroundings. pH and Temperature display with low battery indicator and the unit operates power saving mode.
  • Multi-points Calibration: Up to 3 Points PH calibration (pH 7.0 / pH 4.01 / pH 10.01). It has advance one touch calibration function with automatic buffer recognition to avoid errors.
  • ATC (Automatic Temperature Compensation): The monitor has ATC function so it will decrease the error of PH readings caused by the fluctuation of water temperature.
  • HIGHLY ACCURATE MEASUREMENT: It has separate probe. When taking a measurement, simply place your probes into the solution and and then the accurate readings will be displayed on screen.
  • POWER SOURCE: The monitor is operated with 4 x AA Alkaline Battery. It will go into power saving mode after around 5 minutes. In this way, it can provide battery life time for at least 3 months.
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Product details

  • Batteries ‏ : ‎ 4 AA batteries required.
  • Parcel Dimensions ‏ : ‎ 17.6 x 14.7 x 5.9 cm; 390 g
  • Date First Available ‏ : ‎ Jan. 5 2021
  • Manufacturer ‏ : ‎ Gain Express Holdings Ltd
  • Place of Business ‏ : ‎ To Kwa Wan,, Kowloon, 000,HK
  • ASIN ‏ : ‎ B08RYJ48X8
  • Item model number ‏ : ‎ PHM-295
  • 鶹 Rank: #93,272 in Home (See Top 100 in Home)
  • Customer Reviews:
    4.1 out of 5 stars 406 ratings

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This item: Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory (pH/Temperature Meter)
$49.90
Get it by Thursday, Aug 7
Only 10 left in stock.
Sold by Gain Express and ships from 鶹 Fulfillment.
+
0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium
$29.99
Get it by Monday, Aug 11
Only 8 left in stock.
Sold by Gain Express and ships from 鶹 Fulfillment.
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Product Description

pH & Temperature Meter

This device accurately monitors pH and temperature in your fish tank. It features a permanent temperature probe and a replaceable pH probe, allowing you to save costs by only replacing the pH electrode instead of the entire monitor.

pH & Temperature Meter
pH & Temperature Meter
pH & Temperature Meter

Digital Combo pH & Temperature Meter

  • Automatic Temperature Compensation (ATC): The device adjusts for temperature variations, providing accurate pH readings regardless of changes in water temperature.

  • User-Friendly Design: Features a large LCD display with a smart backlight, compact size, and switchable C/F units for convenience.

  • Versatile Applications: Suitable for aquariums, pools, spas, hydroponics, labs, hospitals, and industrial water analysis.

pH & Temperature Meter
pH & Temperature Meter

Flexible Installation & Operation: Offers versatile mounting options (hang, wall-mount, or tripod) with factory pre-calibration and up to three-point pH auto-calibration and operates on AA batteries with power-saving mode for longer usage.

pH & Temperature Meter
pH & Temperature Meter

Important information

Directions

1. Remove the pH meter from its packaging. 2. Install 4 AA batteries (included). 3. Immerse the pH electrode in the test solution. 4. Calibrate the pH meter using the provided buffer solutions (pH 7.0, pH 4.01, pH 10.01). 5. Use the pH meter to measure the pH and temperature of the aquarium or other water sources.

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Customer reviews

4.1 out of 5 stars
406 global ratings

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Acceptable PH meter
5 out of 5 stars
Acceptable PH meter
I have been using this for a while approximately two weeks. The PH sensor and thermometer sensor are always in aquarium and show me the PH and temperature. Temperature is 97% and PH is 96% accurate. In this price it is very good.
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Top reviews from Canada

  • MARTIN GAGNON
    5.0 out of 5 stars great
    Reviewed in Canada on June 20, 2024
    Verified Purchase
    pretty accurate
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  • Jason Gauthier
    5.0 out of 5 stars Works well
    Reviewed in Canada on February 17, 2024
    Verified Purchase
    Will buy for my next build again
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  • Moose
    1.0 out of 5 stars Absolute Junk
    Reviewed in Canada on January 25, 2022
    Verified Purchase
    I almost lost my first hydroponics plant due to nutrient lockout because this thing kept telling me my PH was low. I finally figured out it was that the meter was wrong by almost a whole point on the PH scale after testing my water with 2 other handheld probes.

    I calibrated it with the solution it came with and it seemed to read correctly for the first week or so, so I started to trust the readings. BIG MISTAKE. After going through a half bottle of "PH Up" and the reading was still low, and my leaves started to show signs of lockout, I knew there had to be an issue.

    This product is completely pointless. If you can't rely on it for accuracy and it actually ends up doing more harm than good, then why would you ever want it?

    I'm happy to report my plant is doing much better now, with the current PH reading on this unit saying it's at a 5.2 PH level (in reality it's almost 6).
    One person found this helpful
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  • Moham Ghafouri
    5.0 out of 5 stars Acceptable PH meter
    Reviewed in Canada on December 20, 2021
    Verified Purchase
    The media could not be loaded.
    I have been using this for a while approximately two weeks. The PH sensor and thermometer sensor are always in aquarium and show me the PH and temperature. Temperature is 97% and PH is 96% accurate. In this price it is very good.
    Customer image
    Moham Ghafouri
    5.0 out of 5 stars
    Acceptable PH meter

    Reviewed in Canada on December 20, 2021
    I have been using this for a while approximately two weeks. The PH sensor and thermometer sensor are always in aquarium and show me the PH and temperature. Temperature is 97% and PH is 96% accurate. In this price it is very good.
    Images in this review
    Customer imageCustomer image
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  • 鶹 Customer
    1.0 out of 5 stars Worked for 2 days then reading are way out
    Reviewed in Canada on June 6, 2022
    Verified Purchase
    Worked for 2 days then reading are out probe reads 7.9 to 8.0 my AIP test kit reads 7.4 . With my AIP test kit I tested dstilled water it reads 6.0 ph. The probe reads 9.0 up not even near! The AIP test kit is pretty accurate.the unit is well built but DON'T seem reliable or accurate waiting to see if they can help me or just return it big
    disappointment
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Top reviews from other countries

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  • Nick
    5.0 out of 5 stars Works great.
    Reviewed in the United States on July 1, 2022
    Verified Purchase
    Im using this in a hydroponic setup. It works great. One difficult thing is measuring out the calibration solutions. I have access to a lab, with scales and distilled water, but I dont know how others would do this easily.

    The unit performs very well. Initial calibration is important to get accurate pH readings. But once you set it up, you dont need to recalibrate often. The only time I needed to recalibrate was when I forgot to store the probe in the solution. Important: you never want to store the pH probe dry. It will become Un-calibrated and lose proper function if done repeatedly.

    Overall, its a really nice pH probe at a reasonable cost.
    Report
  • LEROUX p.
    5.0 out of 5 stars -ٰ
    Reviewed in France on July 2, 2025
    Verified Purchase
    Conforme mes besoins
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  • Manuel
    1.0 out of 5 stars Tiempo de uso limitado
    Reviewed in Spain on January 24, 2023
    Verified Purchase
    Al principio va bien, despues de 15 o 20 usos empieza a desvariar y seguidamente se vuelve inestable con mediciones absurdas. Lo e tenido 3 meses y hoy a ido al cubo de la basura.
    Report
  • Christian R.
    5.0 out of 5 stars Preciso
    Reviewed in Mexico on January 18, 2025
    Verified Purchase
    El tercero que compro y me encanta lo practico que es abrir la puerta del sump y ver el pH y temperatura sin tener que hacer nada
    Report
  • Ѝ
    5.0 out of 5 stars 礯Ɯ
    Reviewed in Japan on March 23, 2025
    Verified Purchase
    礯Ɯ
    Report