The Essentials Trident Meter is an all-in-one conductivity, pH and temperature meter. It comes with a replaceable probe housing containing all 3 probes. The meter is dipped into the solution and the readings are displayed on two screens.
Calibration of the pH and EC/CF/ppm is very easy using the push buttons on the meter and Essentials calibration solutions. The Essentials Trident Meter offers the added benefit of being able to select the display options for temperature as ºC or ºF and nutrient solution as CF, EC or ppm.