Benchtop PH meter 1. LCD display, English operation system 2.Automatic and manual ... solution can be chosen to conduct automatic calibration (one point or two points)Test results can be stored, deleted, viewed and ... range,-5.0~105.0°CpH Resolution,0.1/0.01/0.001 mV range,0.1Temperature range ,0.1°CpH ... ,inside - positive, outside - negative) CE Certified CE Certified benchtop PH Meter