Description: Features: 1. Visual display of residual power, LCD display mode, LCD power is 70% less than conventional digital tube. 2. PVC film surface waterproofing, so you don't have to worry about the daily drench. 3. Low power consumption, good stability and easy installation with no mounting screws. 5. Small volume, light weight, good material and long service life. Specification: Condition: 100% Brand New Material: PCB / HTN Weight: Approx. 21.6 g Size: Approx. 64 * 25 * 13 mm / 2.5 * 0.9 * 0.5 in Range of Application: Batteries or equipment with batteries Operating Temperature: -10°- 50° Charging Time: Match the battery Setup Steps: 1. Press and hold the control key to enter the setting interface. 2. Short press the Settings button to select the battery specification. 3. Short press the function key to select the number of battery strings. 4. Long press function key to set s mode, set key to select corresponding mode, function key to open or cancel. Package Included: 1 x Battery Capacity Indicator 1 x Connecting Line 3 x Screws 3 x Nuts Notes: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.