Features 1. LED digital display shows 3-digit readings for easy viewing, with twist-and-lock design for convenient use. 2. Real-time car battery voltage detection, compatible with 12V electrical systems. 3. Universal voltage meter suitable for cars, motorcycles, boats, caravans, campers, and other vehicles. 4. Compact design, easy to install and operate; touch on/off function helps save energy. 5. Made of PC flame-retardant material with reverse connection protection to prevent circuit damage, ensuring safe operation. 6. Monitors battery voltage and indicates battery status promptly; can also be used for monitoring voltage in other applications. Specification Condition: Item Type: Voltage Meter Material: PC Shell Color: Black Features: Waterproof, flame-retardant material Interface Type: Anode and Cathode Application: Universal for cars, motorcycles, and other models Input Voltage: 12-24V Output Voltage: 5V Output Current: 1000mA Working Temperature: -40C to 60C Applicable Charging Range: 12-24V Package List 1 x Voltage Meter 2 x Blue Terminals