Ph Tester Digital Ph Meter, Professional Ph Pen With 0.01 Ph High Accuracy, 0-14 Ph Measurement Range, Ideal Water Ph Tester For Household Drinking, P Product Quantity: 1 piecePackage content: 1*PH detection pen1. EASY READING BIG BACKLIT LCD DISPLAY : Water quality meter with Big Backlit LCD is far superior than other ones, which allows wider angles of data reading and night reading.2.WIDE USAGE: Pocket Size PH Meter is the ideal PH tester for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.3.FAST AND ACCURATE: Ensure your drinking water,pool, general hydroponics PH has a perfect pH balance and safe for use with precision PH tester .PH meter for water has a sensitive electrode sensor to read accurate pH.