Tooluxe 40517L Car Battery & Alternator Tester for 12V Cigarette Lighter Socket, LED Indicators

The Tooluxe Car Battery & Alternator Tester for 12V Cigarette Lighter Sockets is a battery meter monitor that plugs into standard 12V cigarette lighter ports. Labelled LED lights indicate power and charge levels of alternators and batteries, allowing you to diagnose problems with battery or alternator yourself, without a technician or mechanic. This automotive volt meter can help avoid car malfunctions due to low battery and is compact, so it can be stored in glove box