Features High Accuracy Measurement: Features a remarkable 0.025% resolution for precise voltage readings, ensuring you always have reliable data for your projects Easy Power Connection: Directly uses the power supply under test, eliminating the need for separate power sources and streamlining your setup process Low Startup Voltage: Capable of measuring voltages as low as 3.0V, making it perfect for a wide range of applications, from low-power devices to automotive use Durable Construction: Made with high-quality materials for long service life, providing you with a dependable tool that withstands regular use and harsh environments Reverse Connection Protection: Designed with safety in mind, this voltmeter will not burn out when connected incorrectly, ensuring peace of mind during operation Features: 1、Made of material, and long service life. 2、This accuracy voltmeter has a “core” of 0.025% resolution to make sure sufficient margin, it has high accuracy 3、No need to supply power separately, use the power supply under test directly 4、Low startup voltage, blue shows a minimum of 3.0V 5、It has reverse connection protecting function and will not burn when connected. Specification: Features: 1. Made of material, and long service life. 2. This accuracy voltmeter has a "core" of 0.025% resolution to make sure sufficient margin, it has high accuracy 3. No need to supply power separately, use the power supply under test directly 4. Low startup voltage, blue shows a minimum of 3.0V 5. It has reverse connection protecting function and will not burn when connected. Specification: Condition: 100% Measuring Range: DC3.0-30.0V Power Supply Range: No Need to Supply Power Separately, Use the Power Supply Under Test Directly Allowable Error: 0.1% Input Impedance > 100K Ohms Operating Current: between 18mA Refresh Rate: About 300ms Once Display Mode: Three 0.36'' LED Digital Tube Lead Length: Approx. 15cm / 5.9in Size: Approx. 23 * 15 * 10mm / 0.9 * 0.6 * 0.4in(length x width x thickn) (Without Mounting Ears); With Mounting Ears Length: Mounting Hole Spacing: 28mm, Aperture: 2.8mm Working Temperature: -10℃- 65℃ Package List: 5 * Digital Display Voltage Gauges Package List