Meter Only Pd 450 Waterproof Portable , Each

Details:

Pd 450 waterproof portable meter only 3 1/8 x 2 1/2 inch^ pd 450 waterproof portable meter only, backlit lcd display, -2 to 16 ph, /-0.01 Ph accuracy, /-0.5% Fs accuracy, calibration up to 6 points, 2x aa batteries(included), 500 hrs battery-life, dimension: 3 1/8 x 2 1/2 inch