Apera GroStar® Series GS1 pH Pen (Gen II) is a premium pH Tester designed specifically for growers to perform professional pH measurement. GroStar's intelligent and grower-friendly design reduces the guesswork so you can easily manage the success of your crops.
Easy Auto. calibration; Auto. Temp. Compensation (ATC) ensures accuracy in variant temperatures (32-122˚F) Apera's proprietary pH sensor with low impedance greatly improves response speed Auto. recognition of stable values improves consistency so you don't have to guess when to manually hold measurement Complete kit with ready-to-use calibration solutions, batteries, and a lanyard in a rugged carrying case Up to 2000…
The next-generation tester designed for seamless water test experience. Professional measurements for pH, conductivity (EC), ORP (ORP probe sold separately), TDS (ppm), salinity (ppt), resistivity and temperature now become easier than ever. Just connect the tester to your smartphone via Bluetooth in the ZenTest mobile App (Free download in iOS App Store/Google Play Store), the step-by-step smart guide will lead…
