Apera Instruments PHB-3 Economic Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range industrial Aluminum bushing

Aluminum bushing

ERGONOMIC EARPLUG Gone are the days of bulky earplugs that you have to cover with your hands These 2-way radio earpieces feature an ergonomic earplug that fits snugly in your ear canal

the small bearing is reliable to use and supports you for long time use

scanning range is large

Apera Instruments PHB-3 Economic Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range industrial Aluminum bushingApera Instruments PHB 3 Economic Waterproof pH Pocket Tester, 0. 1 pH Accuracy, 0 14. 0 pH Range Apera Instruments PHB 3 Pocket pH Tester is the most economic choice of a reliable pocket pH tester for your regular water solution's pH measurement, including hydroponics, aquaculture, pools& spas, education, tap drinking water, etc. Easy single button operation for 1 point Auto Calibration (pH 7. 0) and 0 to 50C Auto Temperature Compensation (ATC); 0. 1