Red led display digital voltage voltmeter panel DC 2.5-30 V wiring is simple, it only needs to connect two wires, the red wire is to connected to the positive pole, the black wire is to connected to the negative pole.There is protection when the wires aren’t correctly connected, the electric circuit won’t be bummed. This voltmeter doesn’t need external drive working power, it can work with measuring voltage, the working voltage’s range is 2.5-30V.
To reach the best measurement accuracy, this voltmeter will automatically move the decimal point’s position according to the different measuring voltage. When it measures the voltage below 10V, it will display two places after a decimal point. When it measures the voltage above 10V, it will display one place after a decimal point. This voltmeter can be used to measure the storage battery’s voltage in motorcycles and cars and also can grasp the storage battery’s status. It also can be used to measure other voltage.
30V is the voltmeter’s maximum operating limited voltage, please leave enough margin when working, to avoid voltmeter’s permanent damage because of the electrical spark, power supply ripple, or other too high abrupt change of voltage.
Note: The display weight and Dimensions may have ±2% error.
Package Includes :
Specifications and Features :
- Measure Voltage: DC 2.5-30 V two-wire access.
- Current Consumption : < 30 mA.
- Accuracy: 0.1 V.
- Refresh Speed : Approx 200mS/time.
- Weight: 4 gm.
- Display on Voltage: 2.5 V.(but not measure accurately up to 3.6V).
- Dimensions : Approx 33 x 15 x 10 mm(L*W*H)
- Mounting Hole : Approx M3.
- LED Color: Red color
- Working Temperature:-10~65
- It is easy to read, install and use
- It is self-powered version and supports Reverse polarity protection.
- No power supply needed
- Highest input: DC 28V (higher than 28V has the risk of burn up)
- Minimum input: DC 3.6V(below than 3.6V, measurement is inaccurate or does not show)
- 100% Brand new and high quality.