GREE DC 12V 24V Voltmeter Max 2.1A Output 12V/24V Battery Detector SUV Truck Bus RV Trailer Cigarette Socket USB Charger for iPhone 4 4S 5 5S 6 Plus iPad Samsung Android Smartphone Tablet Pad[Product Information]- Enter your model numberto make sure this fits.
- USB output 5.0-5.1V Regulated voltage， Current 0-2.1A
- Keeps informed of battery & charging voltage at all times and can charge some other device at the same time.
- Great tool for monitoring the health of your electrical system， Small design and Doesn't take up much room and very light weight.
- You can leave it plugged in 24/7. it wouldn't use enough power to drain your battery.
- Quick and easy to use to check voltage of your car/boat/truck or whatever. Just plug it in and watch the voltage and see what your alternator is actually putting out. Very easy to read and see.
