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 Hanna Instrument's 98103 Checker 1 is an economical pH tester. The Checker 1 provides fast and accurate pH readings. The Checker 1 is easy to calibrate, and lightweight. The Checker 1 features a large easy-to read LCD and simple 2 point calibration. Unlike other pH testers, the pH electrode of the Checker can be interchanged with any pH electrode of different size and shape. This allows you to use application specific electrodes and saves the cost of a new meter when the electrode needs to be replaced. The Hanna Checker 1 is supplied with HI 1270 combination pH electrode and 2 - 1.5V batteries with 3000 hours of battery life. More Info>
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