SUPNOVA LCD Two-wire Voltage and Electricity Meter DC Digital Display Voltmeter 1. Real-time monitoring, fine-tuning precision, durable, reverse connection protection, stable and reliable 2. Pluggable power connector, RW1 adjustable potentiometer 3. Applicable to various instruments, mobile and convenient equipment, medical equipment, electric vehicles, balance vehicles, unicycles, etc. 4. The default battery voltage is 12V when shipped, you need to customize the interface settings, and you need to power off the memory 5. Under the normal display interface, short press the setting button to switch the display (turn off the display to enter low power consumption) 6. Measurement speed: about 2 secondstime 7. Working air pressure: 80-106 kPa 8. Working current: less than or equal to 15mA 9. Display mode: multi-angle LCD screen 10. Ambient temperature: -10 to 70 degrees Celsius 11. Measuring range: 7-68v 12. Installation size: 58 x 28mm 13. Dimensions: 61x33x14.5mm 14. Weight: about 21g