Morfayer Locomotive Multi-function Voltmeter, Green, Specification: 4 in 1 With 7 Color Aperture1. Material: PC 2. Voltage: 9 24V 3. Scope of application: 12V motorcycles, cars, ships 4. Touch screen design, SET setting key, the product is more durable 5. Switching between 12 hour and 24 hour format: with time memory function 6. Stopwatch, timed to 999 seconds 7. The shell is made of wear resistant PC material, waterproof S7 level, and can still be used normally when soaked in water. 8. Automatic low voltage alarm, intelligent fault correction,