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Checker® (pH Checker)

Hanna. At the cost of a few rolls of pH litmus paper, you ...

Phep® Pocket pH Tester (Manual 1 Or 2 Points)

Hanna. ACCURACY (@20°C/68°F): +/-0.1. CALIBRATION: Manual 1 or 2 points. TEMPERATURE COMPENSATION: NA. ...

Reference Refill Solution Kit For Ap 640

Reference refill solution kit for AP 640. ...

Spare Refill pH Exstik® Electrode Module

Refill for AP 640 ...

Waterproof Refillable Exstik® pH Meter

EXSTIK® WATERPROOF, REFILLABLE Ph METER. Extech. The only stick-style pH meter with a ...