1. High-definition LCD screen: Clear display, easily readable in bright daylight or dim nighttime environments 2. Screwless installation: Built-in design, no tools required, quick and easy installation 3. Wide voltage input (DC 8-100V) + reverse polarity protection: Compatible with various , preventing damage caused by incorrect wiring. 4. Supports customization for multiple battery types: Compatible with acid batteries, lithium batteries, lithium iron phosphate batteries, -metal hydride batteries, and other battery types. 5. Integrated display of battery level, voltage, and temperature: Real-time display of remaining battery percentage, voltage value, and temperature (adjustable between Celsius and Fahrenheit). Parameter: Operating voltage: DC 8-100V Accuracy: ±1% Operating power consumption: 10mA (MAX) Temperature range: -15~80℃/-2~179℉ Accuracy: ±1 Touch interval: 1S Delayed automatic shutdown: 10-120S (adjustable to 10, 20, 30, 60, 120) Sleep Power Consumption: 15-20 μA Over-Temperature Alarm: 0-79°C/0-179°F Low Voltage Alarm: 10.5-60V Buzzer Volume: 60-80 dB Operating Temperature: -10-65°C Product dimensions: 61 x 31 x 12.5 mm Installation dimensions: 58 x 28 mm Color: Black Material: plastic Package Contents: 1*Battery Capacity Indicator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.