JTC-6128 Digital Display Auto Circuit Tester(High Voltage)

1. Outstanding Features

Specially designed to measure DC voltage from 3 to 60V DC, suitable for modern automotive electrical systems and hybrid vehicles. Equipped with wire hook and piercing probe for flexible connection to hard to reach measurement points. LCD display with dual color polarity indication for quick positive and negative identification. Automatic AC/DC identification helps distinguish current type without manual operation. Integrated 4 level over voltage protection ensures safety for both device and user. Uses convenient CR2032 battery, easy to replace. Working environment from 0 to 50℃, suitable for garage and service workshop conditions.

 

2. Practical Applications

Testing battery voltage and charging systems on automobiles. Measuring voltage at connectors, fuses and relays in vehicle circuits. Quickly identifying wire polarity when installing electrical equipment. Supporting circuit fault diagnosis on hybrid and electric vehicles. Checking low voltage signals in control systems. Used in automotive technician training and automotive electrical students. Applied in periodic maintenance and automotive electrical repair at garages.

 

3. How to Use

Step 1: Install CR2032 battery into battery compartment, observe correct polarity.

Step 2: Connect wire hook or piercing probe to measurement point.

Step 3: Clamp the other end to ground or reference point.

Step 4: Observe LCD display to read voltage value.

Step 5: Determine polarity via displayed color and AC/DC identification.

Step 6: Disconnect after measurement is complete.

Step 7: Turn off device and remove battery if not used for long time.

 

4. Device Maintenance

Clean device body with soft damp cloth after each use. Do not immerse device in water or strong solvents. Check probe and wire hook periodically for damage. Replace CR2032 battery when display is weak or does not turn on. Store in dry place, avoid direct sunlight and high temperature. Do not use device outside 3 to 60V DC measurement range. Check over voltage protection function periodically. Store in carrying case when not in use.