6000 Series Waterproof Pen Type Testers EZDO

6000 Series Waterproof Pen Type Meters Feature: 1.Fast response, reliable and accurate measurements. 2.Large LCD display 21 x 18 mm for reading convenient. 3.Impact resistant ABS case by waterproof designed IP 57 rated. 4.1 or 2 points(pH only) manual calibration via screw trim pot. 5.The electrode module are changeable for replacement by user.