All-Sun EM287 This unit is the best electrical tester for reducing diagnostic time in automotive electrical systems. After a simple hook-up of the unit to the vehicle‘s battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the rock switch forward or backward. The unit can be used to measure dc voltage and test for continuity or for bad ground contacts. It can also be used to follow and locate short circuits. It is short-circuit protected. And its long cable allows you to perform test easily. Powered by the vehicle battery directly.
All-Sun EM287 Automotive Circuit Breaker Meter Test Device Car Diagnostic Tester
2.Test the polarity of a voltage
3.Measure dc voltage from 2V to 24V
5.Check electric motor
6.Follow and locate short circuits
7.Test bad ground contacts
Operation Voltage: 8~24Vdc
Cable Length: about 5m
DC Voltage Measurement Range: 2~24Vdc
Overload Protection: 8A
(When the current exceeds 8A, the unit will disconnect the current automatically.)
Size: 274x53x42mm (for main body only)
Weight: about 385g
Unroll the unit cable
Clamp the red battery clip to t he positive terminal of the vehicle battery
Clamp the black battery clip to the negative terminal of the vehicle battery
1.Test the Unit and the Connections
3.Measure DC Voltage
4.Have a Polarity Test
5.Have a Continuity Test
6.Activate Components out of the Vehicle Electrical System
7.Test Trailer Lamps and Connections
8.Activate Electrical Components
a.Activate components with positive (+) voltage
b.Activate components with negative (-)voltage
9.Jumper Lead Feature
10.Check Bad Ground Contacts
11.Follow and Locate Short Circuits
1pc x All-Sun EM287 6-24V DC Power Probe
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