Seedburo offers portable waterproof pH testers with three-point (USA or NIST) push-button calibration with buffer recognition. Three models to choose from: PH10 with ±0.1 pH accuracy, PH20 with ±0.01 pH accuracy or PH30 with ±0.01 pH accuracy, double-junction electrode, auto temperature compensation and self-diagnostic error messages. Each kit includes one pHTestr, two single-use pouches of pH 4.01, 7.00, 10.00 each, and rinse solution; one sample jar; and hard carrying case.

These waterproof pH meters measure 6-½" L x 1-½" diam. and weigh 4 oz. Net wt. 3 lbs. Ship wt. 4 lbs. Actual dims 14" L x 10" W x 3 ½" H. Ship dims. 15? L x 15? W x 5? H.