Thermometers Direct

Ph Meters

PH Meters

pH meters are specifically designed for measuring the pH levels of liquids. pH meters are essential for swimming pool maintenance, but other industries which rely on pH meters include vineyards during wine making, food manufacturers when producing certain foods such as cheese  and garden enthusiast who use pH meters to regulate the soil’s pH level to ensure plants not only grow but thrive.

Our latest rang of PH meters feature pen style PH monitors and replacement capsules at exceptional prices.

1 Item
pH Pal Meter ETI 813-513
pH Pal Meter ETI 813-513
£60.00

14 July 2023  |  Roy

Delivered in quick time and does what it says on the tin .No problems.


01 May 2023  |  Richard

I thought this was good until I purchased a SwitchBot bluetooth thermometer/hygrometer. The problem is that it cannot be user calibrated and you only know the absolute minimum and maximum temperatures. In reality, you need to know what is the temperature and humidity in your greenhouse hour by hour and to receive alerts to warn you to adjust ventilation. This kind of min/max thermometer was ok around 100 years ago, but for the same price you can do much better. I can check my greenhouse temperature (and humidity) from my living room armchair. Then decide if I need to pop out and open/close the ventilation or pop the shade over on hotter days. My other big problem is that the calibration is out by around 10C and cannot be adjusted. Sorry, but SwitchBot wins by a country mile.


19 February 2023  |  Michael

Ordered this Thermometer to replace my previous one which I lost. (a gift to Neptune?). To take the sea temp when I swim. So far so good! and the scale is easier to read whilst treading water.