8540 TECH-CHEK Advanced Starter Circuit Tester

Features:
Allows hands free operation while the technician starts the vehicle.
Indicates you have a good connection to the points being monitored.
Tests battery voltage to verify it is sufficient.
Monitors 4 connection points at one time to expedite the testing process.
Holds the status of all poor connections until the Tech-Chek is reset, allowing the technician to analyze the results.
Will automatically switch to the 24-volt setting if battery voltage is detected above 16 volts.
Includes test lead set (not shown).