Self-test function: self-test before use to ensure accurate instructions
Electronic parts testing: Resistors, capacitors, transistors, diodes, commutators and other household appliances/line inspection, plugs, wires, sockets, switches, appliances, fuses, light bulbs, etc
Dc polarity discrimination: Identification of battery, automotive battery polarity, DC polarity discrimination
Battery power measurement: Simple, preliminary test battery power.
Test range :6-380V