Osa&Jeansbon High Precision Pen Shape Waterproof Crystal Ball Probe ABS Plastics Tester Reviews
The high precision pen shape waterproof crystal ball probe abs plastics tester can be calibrated at two points by the user, simply acting on the offset and slope calibration trimmers. This ph tester is a rugged pH tester with replaceable electrode and renewable reference junction. This ph tester is made of high quality material which can use for long time. This lcd tester is easy to use and carry to anyplace.