Milwaukee pH51 Waterproof pH Tester with Replaceable Probe

DESCRIPTION The Milwaukee Waterproof pH51 Tester is one of our most accurate low cost, rugged and reliable pH testers in the market featuring the ability to easily replace the probe providing for years of carefree use.  It's simple 2 point manual calibration is simple-to-use.  Ideal for use in aquariums, hydroponics, horticulture, pools and many other applications. The Milwaukee pH51 pH tester offers: ACCURACY The Waterproof pH51 tester is accurate to ±0.1 pH and is easy to read. With easy 2 point manual calibration, this pH tester is quickly calibrated to an accuracy of much more expensive meters.  Simple design and rugged, it brings great value for any application.  Why guess at your readings using litmus paper when you can have guaranteed accurate, digital LCD results. LONG LIFE The tester comes with a replaceable pH probe with a double junction probe designed for longer life. FAST RESPONSE The probe is double junction allowing quick, accurate pH readings and respose t