PH & Temperature 2-in-1 Continuous Monitor Meter w/Backlight Replaceable Electrode, Dual Display 0.00~14.00pH °C/ °F Water Quality Monitoring Kit, for Aquariums Hydroponics Pools Tanks Spa

When I first started using the meter every time I took a reading I had to calibrate the probes each time I used it, now I keep the probe in the aquarium on a permanent basis it saves a small fortune on buying calibration powder and distilled water, also gives a more accurate reading than the coloured chart type of tests.

As long as you set it up correct and use the instructions mine is perfect and piece of mind !!

The first unit I purchased had a faulty probe which was disappointing but worked perfectly with a new probe. I have since bought two more units and all three are installed in different locations. All perform very well. The device calibrates easily. Response time is good. The display is easy to read and can be backlit. The device is compact and easily installed. I would recommend this device for its design, performance and price.

This item did not work. I was unable to calibrate to ph 7.0 or 10.0. Every time I tried to increase the value it would reach 4.5 but then automatically drop to 3.5. Would not go higher than 4.5. Same value displayed when the ph probe was detached from the unit. Had to return it. Waste of time and money.

Happy with this unit. It wasn't factory calibrated, but since calibration, it's been rock solid. Would recommend.

It's ok for what I needed

good job

Probe didn’t work had to buy a new probe to get it to work

Super easy setup, if I had to put a number on it I would say it's 95% accurate it'll definitely get you close to your number. temperature seems spot on

pretty accurate

I’m 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 don’t 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 don’t 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, it’s a really nice pH probe at a reasonable cost.

Price worth and with a size that is just right

Has everything I need. Very accurate with large display.