Poniie Professional PH2022 Digital Waterproof pH Meter for Water Hydroponics Food Brewing w/Portable Toolkit Combo, 0.05 Resolution

Features Lab quality probe with 0.05 pH resolution, auto temperature compensation (ATC) ensures reliable performance Auto two point or manual three point calibration available for custom high accurate acid or alkaline solution test Large backlight screen and data hold function for easy viewing, 10 minutes auto off function to extend battery life Comes with Poniie's solid slim portable toolkit box, helping you protect meter's probe and organize all the accessories Comes with KCl solution and 3 set of pH 4.00, pH 6.86 buffers, save cost, ensure effortlessly storage and calibration