PH Meter Test Pen Digital Electric Portable Water Hydroponics Aquarium Tester

Features: 1.Fast and Accurate Readings:Just turn it on, dip in liquid and read display,no need to work with color charts or test strips;Large digital display makes it easy to read. 2.Automatic Calibration:No need any adjustment screwdrivers, just finish the calibration with Auto calibration button and included buffer powders. 3.Portable Design:Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere. 4.Wide Application:Ideal for home and laboratory pH testing applications, including drinking water, swimming pools,aquariums,hydroponics etc.

Specification: Color:Blue&Black Measure Range:0.00-14.00PH Resolution:0.01ph Accuracy:+/- 0.05ph Size:1553118mm Power supply:2*1.5v AG13(keep using more than 500 hours) operating temperature 0-80?

How to use: 1.Remove the protective cap. 2.Rinse the electrode with distilled water, and dry it with filter paper. 3.Turn on the meter,immerse the electrode into the test solution. 4.Stir gently and wait for the reading to stabilize. 5.Turn off the meter after use,rinse the electrode and dry it with filter paper

Package Included: 1 x Pen-type PH meter 2 x Ph buffer powder