HP-770J Automotive Digital Multimeter : 💙【High Precision Automotive Multimeter】Measure DC Amperage to 20A, AC DC Volt to 750V~1000V, Ohm Range from 200Ω to 200MΩ, Temp range from -4~1800℉, 3/4/5/6/8 Cylinder Switchable, 0.1ms~10.0 ms pules width, 000~10000RPM Tachometer and Dwell Angle Test. 💙【Multi-function Multimeter】Data Hold,NCV function,Auto Backlight,Auto Power Off,Diode Test,hFE test,Continuity Buzzer,Temperature Measuring,Auto Backlight makes it convenient for troubleshoot car engine battery and electric problems in dim place. 💙【NCV Sensitive Detection】Press the button of NCV of the voltage meter and close to the lead being measured,buzzer will alarm,in order to make sure circuits were alive in the house.Safely and Accurately to check household electrical problems. 💙【Measure Safety.