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 be easily switched by key . ON/OFF switch - can be turned on or off with the power button. INSTALLATION - with 50cm extension cord, red side for positive, black wire for negative. 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 Battery status reader adopts color screen Clear LCD, allowing you to easily monitor your battery. APPLICATION Can be used as a battery voltmeter, battery capacity tester and temperature gauge panel for car, marine, RV, boat, etc. MULTIFUNCTIONAL Battery capacity Battery voltage Ambient temperature Battery type setting L - Lithium battery, number behind is 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, but also can display Celsius temperature, two kinds of modes can be easily switched by the key. 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 powered on, the remaining battery level and voltage will be displayed. Note: Due to the difference between light and screen, the color of the product may be slightly different from the image. As manual measurement is different, please allow slight differences in size. Shipping Quantity: 1 piece