Welcome to the store! This digital battery monitor is suitable for 7-100V (12v 24v 36v 48v 60v 72v 84v) LiFePO4 batteries, lead-acid batteries, ternary lithium batteries, NiMH batteries, and 18650 power batteries. Whether it's a motorcycle, two-wheeled electric vehicle, three-wheeled electric vehicle, car, or supercar, as long as it's equipped with a battery, it can measure the percentage of remaining voltage. IPX7 waterproof, fully sealed shell, usable in damp outdoor environments. Red wire is positive, black wire is negative. Features a buzzer alarm and temperature display. Short press the "M" button to switch between voltage and temperature (Celsius). Includes power-off memory function. Supported Battery Types: 1. L Ternary Lithium Battery (L03-L20 series), with power-off memory function. 2. P Lead-Acid Battery (DC 12V to 24V, 36V, 48V, 60V, 72V). 3. F LiFePO4 Battery (F04 to F24 series), with power-off memory function. 4. Custom: If your battery type isn't listed above, customization is available. Voltage Range: DC7-100V Operating Current: Less than 10mA Voltage Accuracy: 0.1V (0.1% - 0.5%) Display Mode: LCD screen Measurement Accuracy: 0.5% Measurement Speed: 2 per second Color: Black Material: Plastic + Metal Size: 64 x 36 x 15.3 mm Package Contents: 1 x Battery Monitor 1 x Mounting Bracket with Screw Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!