Equipped with a backlight function that allows you to check the measurements even in dark places. Equipped with an auto stability function (automatically hold the value when it is stable, and displays the instantaneous value when changes occur). It is equipped with a standard liquid automatic recognition function. Just drop the trace sample from 0.003 fl oz (0.1 ml) onto the flat sensor (You can use it anywhere, without a beaker. Time 0.05 Can be measured from mL; Easy operation and safe judgment functions make it easy for anyone to operate; For measuring aquarium water, rain water, rivers, lakes, hot springs, drains and soil; For fermentation, brewing, food freshness; Chemistry, Pharmaceuticals, Cosmetics, Preventive Dentials, School Education, etc. Height: 6.5 inches (164 mm). Measurement range (0 mm). Resolution: H): 0.004 inches (0.1 mm); Depth: 0.08 inches (20 mm); Measurement principle: Glass electrode method; Display range: pH0-14; Sample required measurement: 0.003 fl oz (0.1 mL); Automatic calibration points: Max 2 points; Main functions: Automatic recognition of standard liquid; Temperature compensation; NIST; USA selectable. ...