RT01 can quickly detect whether your relay is normal.It is easy to use and suitable for general-purpose automotive relays on the market.Durng testing, it needs to be connected to a 11V-25V battery in the car.
ANENG 12V Car Relay Tester Automotive Diagnostic Tool Electronic Battery Checker
ANENG Universal Car Relay Tester Voltage Tester RT01 11-25V Car Battery NewUSA!!
ANENG Universal Car Relay Tester Voltage Tester RT01 11-25V ar Battery