Waterproof Double Junction pHTestr® 20

High ±0.01 pH accuracy in a waterproof pocket-sized instrument!

Suitable for most ASTM and EPA test procedures   Double junction electrode ideal for dirty water, heavy sulfides, tris buffers and organics   Increased reference gel volume offers significantly longer electrode life   Certifiable to IP67 standards—waterproof and dustproof housing floats   Replaceable sensor lets you reuse same meter body, saving you money   Automatic temperature compensation   Three point push-button calibration Now you can have high ±0.01 pH accuracy in a waterproof pocket-sized instrument! These instruments also feature a double junction electrode that is ideal for dirty water and solutions with heavy metals or other contaminants. Testr features a waterproof, dustproof housing that protects your instrument from rugged field or plant environments. Range 0.00 to 14.99 pH Resolution 0.01 pH Accuracy ±0.01 pH Calibration Up to 3 points US or NIST (4.01, 6.86/7.00, 9.18/10.00) ATC Yes Electrode Replaceable double junction Waterproof/Dustproof (IP67) Yes Operating Temperature 0 to 50°C (32 to 122°F) Power Four 1.5 V batteries Battery life Over 500 hours Dimensions 6.5" x 1.5" dia (16.5 x 3.8 cm) Shipping weight 4.5 oz (125 g)