Requires calibration solution, which is sold separately The Eco Series pH+ Tester Pen gives fast, accurate, and easy to read pH readings. No more need for test strips or color test kits! This convenient test pen makes it easy to do frequent testing for accurate, safe pH control. Controlling pH effectively helps balance water chemistry, enhance fish coloration, promote spawning and control CO2 levels. Includes protective case and (4) 1.5V button cell batteries. Easy to Use: One-Touch Calibration, beeps after each reading Durable: drop shock resistant, water resistant, floats in water Use this link for Calibration Solution. Specifications Range 0 to 14 pH Resolution 0.1 pH Accuracy ± 0.2 pH Battery Type (4) 1.5V Button Cell(Alkaline A76 or equivalent) Battery Life Approximately 150 hours Automatic Shut-Off Approximately 15 minutes Product Life 365 tests or 1 year Operating Temperature 0 to 50°C / 32 to 122°F Packaging Size 7.3"L x 2.6"W x 1.0"H Packaging Weight 0.3lb Product Size 6.7"L x 1.3"W x 0.6"H Product Weight 0.15lb Manual
