Morfayer Locomotive Multi-function Voltmeter, Red 1. 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, low standby power consumption, no fear of any bad weather 9. The temperature sensor open circuit prompt code is Er1, the temperature sensor short circuit prompt error code is Er2, a UoL fault is prompted when the battery voltage is lower than 9V, the factory low voltage alarm value defaults to 11.5V 10. Size: 51x38x15mm 11. Weight: 0.005kg 12. Single-function voltmeter, 2-in-1 (temperature + voltage), 4-in-1 with monochrome aperture (time + temperature + voltage + racing timer), 4-in-1 with 7-color aperture Packing list: - 1 meter - 1 mounting bracket (four-in-one function comes with 1 product manual in Chinese and English) - 2 self-tapping screws - 2 cable ties