Two-Wire Voltmeter DC4.5V-30.0V Digital Display Voltmeter LED Digital Voltmeter

Two-Wire Voltmeter DC4.5V-30.0V Digital Display Voltmeter LED Digital Voltmeter Popis

Suitable for use in environments with temperatures from -10 to +65C and humidity from 10% to 80%.
Adjustable voltage resistor: By rotating the voltage resistor clockwise, the user can easily adjust the device for use with various power sources
Includes 5V, 9V, 12V and 24V. This feature allows for a variety of applications in different electronic setups.
Protection design: Equipped with reverse polarity protection to prevent damage caused by incorrect battery installation
Although the meter will not burn out, it will not display a reading until the polarity is corrected, thus increasing the durability and usability of the device.

Measuring range:Red DC4.50-30.0V, Green DC4.70-30.0V, DC5.00-30.0V
Power supply range:No need for additional power supply, directly use the measured voltage as the power supply, the range is the same as above
Maximum input:DC30.0V. Note: Input voltage higher than 30V may cause permanent damage!
Allowable error:1%; when greater than or equal to 10V, the error is 0.3V; when less than 10V, the error is 0.10
Input impedance:Greater than 100K ohms
Working current:Red Less than 23mA, green Less than 18mA, Less than 13mA
Refresh rate:About 300mS once
Colour:As Shown
Material:plastic

Package Contents:
8 x Voltmeter (2 x red+2 x +2 x green+2 x yellow)