Applicable battery type --- digital battery display is suitable for 10-100V (12v 24v 36v 48v 60v) lithium batteries, lead-acid batteries, lithium iron phosphate batteries, -metal hydride batteries.Application --- It can be used as a battery voltmeter, battery capacity tester and temperature indicator panel, suitable for automobiles, ships, , ships, etc.The thermometer shows the temperature in Fahrenheit. - - The temperature indicator can be displayed in Fahrenheit.What you -easy to install and use. Allows you to the percentage with the corresponding voltage.Default value --- 12 volt lead-acid battery.Working voltage: 10-100VPower consumption: 8-10mA (backlight bright)Temperature measurement range: -17.84-81.74 CSize details:Product size: 61.5x33.5x13.5mmInstallation size: 58.5x28.5mmDisplay size: 33x16.5mmMaterial:plasticcolour:blackPackage Contents:1 x Battery capacity monitor