• Charge Level Red Indicator Voltmeter Precise for 12V Lead-acid Battery
• Working current:5-15mA(The lower the battery voltage and current smaller)
• Eight electricity Resolution:10% 25% 40% 50% 60% 75% 90% 100%
• Voltmeter accuracy:1%
• Working temperature: -10 ~ +65 Celsius
• Operating Humidity: 10 ~ 80%
• Dimensions: 48*29*21 mm
• NOTE:It will only display voltage if not measure battery 

Indicator:

• Battery voltage is greater than 11.1V, 1 led indicator is lit.
• Battery voltage is greater than 11.3V, 2 led indicator is lit.
• Battery voltage is greater than 11.6V, 3 led indicator is lit.
• Battery voltage is greater than 11.9V, 4 led indicator is lit.
• Battery voltage is greater than 12.2V, 5 led indicator is lit.
• Battery voltage is greater than 12.5V, 6 led indicator is lit.
• Battery voltage is greater than 12.9V, 7 led indicator is lit.
• Battery voltage is greater than 13.3V, 8 led indicator is lit. 

Package content:

• 1 * lead lithium acid LED indicator battery capacity tester voltmeter 12V