PH20 Value Pocket pH Tester Kit

4.65 52
  • Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122˚F)
  • Backed by Apera quality pH sensor with low impedance, ensuring high response rate
  • Comes in a rugged carrying case with pH 4&7 buffers and a lanyard
  • Auto. recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement
  • Up to 2000 hours' continuous operation, powered by AAA batteries
  • VIDEOS +
  • SPECS +
  • FILES +
  • PARTS +
  • kit

    Meter's Technical Specs



    0 to 14.0 pH


    0.1 pH


    ±0.1 pH

    Calibration Points

    Automatic 1 to 3 points

    Temperature Compensation

    Auto Temperature Compensation

    0 to 50°C (32 to 122°F)



    0 to 50°C (32 to 122°F)






    180° Viewing Angle LCD

    Stable Reading Indication

    Smiley Face icon

    Low-Battery Warning

    Battery icon flashing, reminder of battery replacement



    Heads-Up Function


    Auto. Power-Off

    Yes, auto power-off in 8 minutes without operation

    Waterproof Rating

    IP67; Floatable


    DC3V, AAA batteries*4

    Battery Life

    Continuous operation up to 2000 hours

    Dimensions& Weight

    Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g

    Electrode's Technical Specs


    Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, aquaculture, cooling towers, etc.

    Shape of glass membrane




    Temperature sensor



    Single Junction Ceramic

    Reference Eelctrode



    KCL Gel


    0 to 14 pH

    Temperature Range

    0 to 50°C (32 to 122°F)

    Customer Reviews

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    Apera PH20

    This is a solid little meter! Has temp reading! Comes with both 4.0 and 7.0 calibration fluid as well as lanyard and a nice compact carrying case. Even has laminated instructions included in case. Only thing I can say is directions are beyond confusing. Best thing to do is go to YouTube. There is detailed video on exactly how to calibrate and keep your meter running smoothly! Would 100% recommend to anyone looking for a fair priced digital PH meter. Review by Steven W • (Posted on 4/28/2018)

    Easy and reliable ph tester for daily use

    Quick and easy ph testing. Easy to calibrate, holds calibration. Recommended to buy calibration and storage solutions as this only comes with two tiny bottles that don't reseal properly once opened. Review by The Hungry • (Posted on 4/22/2018)

    stays calibrated and comes with a nice case

    Awesome pen for the price. Always double check the calibration, yet it has been spot on since day one. Reads the level quickly, and comes with an awesome storage case. I didn't want a super cheap pH meter, and didn't want to spend a small fortune on one either. This was the best deal without breaking the bank. Easily does just as good as my buddies expensive pH meter. Review by James • (Posted on 4/16/2018)

    Good meter

    Using the meter in my small home brew shop. It's accurate and well made. At first it waste bit hard to understand the calibration process, but after understanding that it became really easy to use. Review by Maurizio • (Posted on 4/9/2018)

    Good kit

    I've been using this kit for my aquariums. Be sure to read the instructions first and it is helpful to look t the videos on YouTube. Initial calibration was bit fussy but it becomes simpler s you become more familiar with it. It is accurate and I've encountered no problems. I like that everything you need including batteries is included. Review by Antigone W • (Posted on 4/3/2018)

    Very glad to finally have a meter of this quality

    Incredible meter, had a question and the company support returned my call and subsequently solved my problem in within 24 hours. Very glad to finally have a meter of this quality. Review by Donna K • (Posted on 3/22/2018)

    Great for reef tank

    We're using this for our saltwater reef tank and this is just what we needed. It's a little complicated at first (learning curve), but seems to work great for monitoring our water. Review by Kat H. • (Posted on 3/1/2018)

    two stars

    One of the bottles of the ph solution was leaking so only half the solution is left. Review by Lie Mie Mie • (Posted on 2/16/2018)

    works for urine ph

    I needed this product to test urine pH in dairy cattle, which is very important in determining potential illness after calving. The product works just how I expected. Only difficulty is my less tech-savvy boss pushes the wrong buttons and gets frustrated. If you read the directions you’ll be fine. Review by Chris M • (Posted on 2/16/2018)

    Easy to use

    I use this every day. I also calibrate it with the proper pH solutions every month. Easy to use, very well made, excellent operating instructions (including an illustrated laminated card. If I could add one improvement, it would be to have grippy ridges molded jnto the sides of the meter to minimize it slipping out of one's hand. The storage/carrying case is very well made also, with padded cut-outs to fit the instrument and two bottles of calibrating solution. This is a superior product. Review by C. Tina • (Posted on 2/9/2018)

    1-10 of 52

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    Write A Review For PH20 Value Pocket pH Tester Kit

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    • Quality

    We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument and SIX MONTHS for the probe from the delivery.

    This limited warranty does NOT cover any issues due to:

    • Accidental damage
    • Improper use
    • Normal wear and tear
    • Transportation
    • Storage
    • Failure to follow the product instructions
    • Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
    • Unauthorized repair
    • External causes such as accidents, abuse, or other actions or events beyond our reasonable control.

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