Model	GI-PH903
Measuring Range	0.00 - 14.00 pH
Accuracy	≤± 0.02 pH
Calibration	2 points
Plug	fixed electrode
Temp	5 - 50°C (ATC)
Size	150 x 22 x 16 mm

We constantly keep in mind that the safety of the user should always comes first. We made sure that our ph-meters，TDS-meters， and their components comply with the requirements and conform with the essential health and safety requirements set out in European Directives through the CE marking.This unit is the inexpensive way to monitor your nutrient level! An essential tool to KNOW what the strength of the solution is before feeding your plants AND while they are growing!

To take a reading of your solution - simply place the probe head into the solution for 1-2 minutes to reach the same temperature as your nutrient and will hold the result for 5-10sec. You don`t have to press a button to reset the measurement just removed from the solution and wait till the "000" appears and its ready for use to another nutrient measuring. Rinse the probe after use in fresh water and clean once a week to ensure the GI-pH903 remains accurate. A dirty probe can skew the readings of your meter， resulting in a harmful growing environment.