7-100V Digital Battery Capacity Tester, Battery Monitor, Voltage and Temperature Switch for Cars and Boats, IPX7 Waterproof

General Description The digital battery capacity tester is designed to measure the residual voltage of batteries in a wide range of applications, including electric vehicles, supercars, and other battery-powered vehicles. It is compatible with various battery types, including LiFeO4, lead-acid, ternary lithium-ion, NiMH, and 18650 batteries. Its IPX7 waterproof casing allows for outdoor use, even in humid environments. Technical Specifications Voltage Range: DC 7-100V Working Current: Less than 10mA Voltage Accuracy: 0.1V (0.1% - 0.5%) Display Mode: LCD screen Measurement Accuracy: 0.5% Measurement Speed: 2 times per second Size: 64 x 36 x 15.3 mm Color: Black Material: Plastic Usage The battery monitor is equipped with an audible alarm for high and low voltage levels. It also allows you to switch between voltage and temperature (Celsius) readings by briefly pressing the "M" button. Wiring is simple, with red for positive and black for negative. Other information: Package contents: 1 x battery tester. Note: Light reflection and different displays may cause a slight color difference from the actual item. The measurement allowed error is +/- 1-3 cm.