APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy Regular Kit industrial and the relative softness of

and the relative softness of the brass threading when compared to other metals allows for a tight seal to resist leaks

Easy Voice and Sound Activation Transmission (eVOX) with 9 sensitivity levels for hands-free operation

Radio straps holds the coiled speaker mic cord in place to prevent it from snagging on anything as well as to minimize the chance of damaging or stretching it

- High Grade Oxygen Free Copper (OFC) for effective EMI and RFI rejection and flexibility

and place dowel in the hole

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy Regular Kit industrial and the relative softness ofAPERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, 0. 1 pH Accuracy Simply the most reliable pocket pH tester with the best value for general purpose pH testing e. g. hydroponics, horticulture, pools and spas, water treatment, beverage making, education, environmental monitoring, etc. Up to 3 points of Auto. calibration and 0 to 50C Auto temperature compensation (ATC), 0. 1 pH Accuracy with 0 to 14. 0 pH measuring range; Auto.