Apera Instruments PH60F Premium pH Pocket Tester, Replaceable Flat Electrode for fabric/paper/skin Testing, ±0.01 Accuracy, 2.00 16.00 Range, ±0.5C Temperature Sensor

Easy-to-install Replaceable FLAT sensor, Triple-Junction structure prevents clogging, designed for Skin, Fabrics, & Paper pH testing, also works great for regular pH measurement Easy Auto Calibration with auto buffer recognition (1 to 3 points); Auto Temperature Compensation (ATC) Unique High/Low Value HEADS-UP function, instantly reminding you of any results that need your attention with a red backlight LARGE CLEAR LCD with 3 backlit colour (indicating 3 different modes), DUAL display of temp./pH, and REMINDERS of completed calibrations and stable readings COMPLETE Kit with READY-TO-USE calibration buffer solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a portable carrying case