3-in-1 soldering tester, test surface resisitance, leaking voltage, iron temperature , ... CA sensor can precisely measure temperature of soldering tip, liquid crystal digital display.2.Measure the inner temperature of other liquids ... Wide temperature range, high accurancy.4.Testing result can be output to monitor. BK193 3-in-1 SOLDERING TESTERModel:BK193Desolution0.1oCMeasure range0~500oCThermocoupeK ...