【Three Working Modes Can Be Switched】

Test light automotive has a switch and a 12V 5W test bulb, you can select the LED digital display and the bulb to work at the same time (quick test mode) through the switch,or either the LED digital display and the bulb work ( Computer safe mode/bulb mode),to complete voltage test,battery fault/fuse circuit diagnosis,and judge the voltage intensity by testing the brightness of the bulb (higher voltage:max 30V,brighter bulb:max 5W)

【Bulb Load Measurement&Voltage Measurement】

Use the 5W test bulb on the top of the voltage tester as the load to quickly determine the power failure of the line.Compared with the diode,it can also find some invisible poor contact and virtual voltage failures.In addition,it can perform pure voltage measurement,using the voltmeter function of the electric pen,and the brightness and darkness of the electric pen bulb,can realize more accurate measurement,thus improving the level of fault diagnosis.

【Voltage Polarity Display&Load Device Measurement】

In the measurement,the positive/negative polarity of the power supply can be measured by using red/green light-emitting diodes(red light positive,green light negative).Polarity tester has two probes,for the load plug,you can use the auxiliary probe,combined with the main probe,to directly perform load simulation measurement.It can also check whether the power cord is energized or whether the negative power cord in the plug is properly grounded.

【Pulse Signal Measurement&Predictable Frequency&Short-Circuit Positioning】

Automotive test light can measures pulse signals such as Hall sensor,ignition pulse,fuel injector pulse,carbon canister solenoid valve,etc.It can also be used to measure fuel injector signal,spark plug,crankshaft sensor signal,etc.When the test light is connected to an AC signal (5-30V),the frequency range can be estimated through the display of the digital tube.It also quickly finds short-circuit points with two probes.