LCD DISPLAY - easy for you to monitor your battery. MULTIFUNCTION - not only displays battery capacity and voltage, but also can display Celsius temperature, two kinds of modes can easily be toggled with the button. ON/OFF switch - can be turned on or off with the power switch. INSTALLATION - with 50cm extension cable, red side for plus, cable black to say the least. p> Suitable for - 10-100V lithium battery (12V 24V 36V 48V 60V 72V 96V), lead acid battery, lithium iron phosphate battery, Ni-MH battery. LCD DISPLAY The Battery Status Indicator features a clear color LCD display that allows you to easily monitor your battery. APP Can be used as battery voltmeter, battery capacity tester and temperature display chart for car, marine, RV, boat, etc. MULTIFUNCTIONAL Capacity battery voltage Battery voltage Ambient temperature Battery type setting L - Lithium battery, the battery number behind is the serial number P - Lead acid battery, the number behind is the voltage F - lithium iron phosphate battery, the number behind is the serial number Multifunctional Not only can display the battery capacity and voltage battery, but also Celsius temperature, two kinds of modes can be easily switched by button. On/off switch - can be turned on or off with the power button. Wiring method Connect the red wire to positive and the black wire to negative. When turned on, the remaining battery level and voltage are displayed. Note: Due to the difference between light and display settings, the color of the product may differ slightly from the image. As the manual measurement is different, please allow a slight size difference. Shipping Quantity: 1 Piece