Features: Accurately monitor battery levels with 99% accuracy using the BI002 LED Digital Battery indicates, designed for 12V to 72V systems and featuring IP65 waterproof rating for stable performances in harsh conditions. This gauges features a 10 segment LED , clear LCD percentage display, and low/high charges alerts, while its epoxy seal construction ensures durability and memory function tracks up to 300 charges cycles. Essential for cart, marine, motorcycle, , tractors, and forklift owners needing real time battery rank updates during charging or discharging. Withstands vibrations and extreme temperatures ( 40°C to +85°C), ideal for industrial warehouses, outdoor worksites, or courses requiring hard , weather resistant battery monitoring. Engineered with high grade ABS and complete installation accessories, this small circular gauges combines space saving design with easy mounting, making battery management easy across multiple applications. Specifications: Component : Plastic Size: about 49x60mm/1.93x2.36inch Type: Battery Chronometer Part number: BI002 Display way : LED Working electric : 12/24V, 36V, 48/72V electric accuracy: 5% Downlink delay: 155s Charging delay: 200s Waterproof grade: IP65 Package Includes: 1 set Digital Battery Meter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.