pHTestr® 50S Spear-Tip Waterproof Pocket Tester (Oakton)

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  • Replaceable double junction spear sensor
  • Easy-to-navigate interface for quick setup and calibration
  • IP67-rated housing is waterproof

The Oakton pH 50S Spear Waterproof Pocket pH Testr™ with its unique junction design provides increased electrolyte flow, resulting in greater contact between sample and reference, ensuring fast, stable readings. The electrode junction is 200 times larger than standard electrodes, making it virtually impossible to clog. Rugged spear tip makes it ideal for soft solids and semisolid materials like meats, cheeses, and fruit. The long, thin electrode can be used to determine pH in test tubes, micro tubes and other narrow containers. Additional features include a hold function, auto-off function, self-diagnostic error messages, and a three-segment battery-life indicator.


Item No. 3806-37
Range -1 to 15 pH
Resolution 0.01 pH
Accuracy ±0.01 pH
Calibration Up to three points
Temperature 32 to 140°F
Waterproof/Dustproof (IP67) IP67-rated
Battery Life 250 hr
Power 4 AAA batteries