Sper Scientific pH Test Tube Pen

Item #: 2013734
$52.99 $41.33

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Sper Scientific Ltd. Test Tube pH Pen is designed for easy calibration and simple, accurate measurement. The 12 cm long probe is capable of testing samples even in narrow-mouthed containers. The waterproof meter provides one-button, three-point calibration with customizable calibration values. Other features include a data-hold function, automatic shutoff and low-battery indicator. This model also measures temperature and provides automatic temperature compensation