1.Data store/recall 2.Sound Velocity measuring 3.LCD backlight 4.Alarm set 5.Low battery indication

Measuring Range 1.2~225 mm(steel)Accuracy ± (1%H+0.1)mmResolution (< 100mm)0.1mmSound velocity Range 1000~9999m/sFrequency 5MHzOperation temperature 0~45 degree celsiusSensor operation temperatuer 0~60 degree celsiusTwo Sensors configuration 10 * 2.5 MHz10 * 5 MHzMinimum limit for Tube measuring10mmprobe: 20x3mm(steel)Data store/recallSound Velocity measuringLCD backlightAlarm setLow battery indicationAuto power offWeight 290gDimension 136x72x36 mmBattery Type 9V(6F22)*1