Apera Instruments GroStar Series GS4 Gen II pH Pen Tester Kit

Brand new sealedApera GroStar® Series GS4 5-in-1 Combo Pen (Gen II) is a premium tester designed specifically for growers to perform professional measurements of pH, EC, 500ppm, 700ppm, and temperature. GroStar\'s intelligent and grower-friendly design reduces the guesswork so you can easily manage the success of your crops.Main Features:
The pH/EC combo probe is built with a double-junction pH sensor and titanium conductivity sensor, ensuring quick and reliable readings in the long run.
Easy to use design and quick 2-point automatic calibration with electrode condition display.
3-Color backlit LCD screen gives you clear readings in different modes even in dark environment.
TruRead measurement mode available for taking measurements in multiple locations and automatically displaying the average, minimum, and maximum values of all the readings.
The probe is replaceable, so you don\'t have to discard the entire pen when the probe reaches its end of life.