1. This DC voltage meter is small in size, compact design. 2. It can measure and display DC voltage, with a wide measuring range. 3. The voltage meter uses a 0.56-inch 3-digit LED display, clear to read. 4. There are 2 wires, easy to connect; it supports reverse input protection, will not burn out. 5. Widely used for strollers, electric bikes, motorcycles to monitor battery voltage and many other voltage measurement purposes. Features: This DC voltage meter is small in size, compact style. It can measure and display DC voltage, with a wide measuring range. The voltage meter uses a 0.56-inch 3-digit LED display, clear to read. There are 2 wires, easy to connect; it supports reverse input protection, will not burn out. Widely used for strollers, electric bikes, motorcycles to monitor battery voltage and many other voltage measurement purposes. No need for power supply, it can test voltage directly. Specification: Display Color: Red, Yellow, Green (Optional) Measuring Range: 2.5-30V; 5-130V (Optional) Working Current: <30mA Operating Temperature: -10~65℃ Test Accuracy: 3% Certificate: CE ROHS Size: 5*3cm/2*1.2in Weight: Approx. 39g/1.4oz Package List: 1 * Voltage Meter