2 Wires DC Volt Meter LED Display 0.28 Inch Digital Voltage Tester DC 2.5V-40V Red/Blue/Yellow/Green Reverse Polarity Protection Feature: 1. Stable Operation: This mini digital voltmeter offers stable and reliable performance, ensuring accurate voltage measurements in various applications. It provides consistent results, giving you confidence in the reliability of your electrical systems. 2. High Measurement Accuracy: With its high measurement accuracy, this voltage tester meter delivers precise readings, allowing you to monitor voltage levels with confidence. Its accuracy is essential for critical applications or when working with sensitive electronic devices. 3. Compact Size: The small and compact design of this DC voltage display makes it easy to install and integrate into various setups. Its compact size ensures minimal space requirements while still providing all the necessary functions for measuring voltage accurately. 4. Reliable Circuit Protection: Equipped with reliable circuit protection, this DC volt meter safeguards against reverse polarity connections. Even if the wiring is reversed, the voltmeter will not be damaged, providing added safety and peace of mind during installation and use. 5. Wide Applicability: This led screen meter has a wide measurement range from 2.5V to 40V, making it suitable for a variety of applications. It comes with two wires for easy and simple connection, allowing convenient access to vehicle/internal circuits in cars, electric bikes, and motorcycles. Specification: Origin: Mainland China Type: Module Condition: New Model Number: Mini Digital Voltmeter Function Introduction: 1.range: 2.5-40V(red) 2.6-40V(yellow) 2.6-40V(green) 3.2-40V(blue) 2. Equipped with two wires, easy and simple wiring, convenient to access the car/battery car/motorcycle car line; 3. With reverse connection protection function, the line will not be burned when connected to the reverse, with fine-tuning function; 4. Pay attention to the use of input voltage can not exceed 40V, otherwise there is a risk of burning. 5. When the voltage is lower than 3.0V, the display brightness will be dimmed, but does not affect the correct measurement. 6. When measuring voltage below 10V, it will display two digits after the decimal point; when measuring voltage above 10V, it will display one digit after the decimal point. That can take care of the battery users of the measurement accuracy needs, but also can take care of the measurement of higher voltage needs Working voltage: DC2.5~40V (with reverse connection protection) Detection voltage: DC2.5~40V Working current: