Linkstyle Linkstyle 12V Voltage Gauge, DC 4V-100V Voltmeter Gauge, Digital Voltmeter Voltage Display, Battery Monitor

description About this item Wider Test Range: Measurement range: DC 4V-100V. Minimum starting voltage: 3.8V. [Note: No display below 4V, voltmeter gauge will burn out above 100V] Reverse Connection Protection: If the positive and negative poles are connected in reverse, the device will not burn out, but there will be no display Real-time Monitoring: Using a precise 3-digit LED digital display, you can easily and accurately obtain the battery voltage in real-time. Refresh rate: 300mS/time Mini Size: The 12v voltage gauge instrument is compact and will not take up much space on your dashboard. Drill hole size: 1.18in/3cm Widely Used: The battery monitor is suitable for cars, RV, SUV, off-road, boat, marine, motorcycles, bikes, substation automation, distribution automation, test equipment, voltage regulator, etc See more product details