Features:
Mini size and easy to install,work great for checking Voltage.
With Touch ON OFF Switch,easy to use and save energy.
Support battery voltage value and capacity percentage of battery display
Touch about 5s to turn on or turn off the power.
The state of your battery between full charged and discharged
The meter has easy to read LED segments and connect to your 12 volt system.
Used to monitor the storage-battery voltage, with reverse connection protection function, line will not be burnt.
Timely grasp the state of battery voltage, voltage measurement purposes can also be used for other products.
 
Specifications: 
Material: Plastic
Measure voltage: DC 5V - 30V
Color: Black
LED Voltmeter color: Blue,Green,White,Orange
Packag size:9.3*4.5*3.5cm/3.66/1.77/1.38in
Package weight:32g/1.13oz

Packing list:
1 * Digital Voltage Meter
2 * Terminal