Fangrui Product Details This Voltmeter Has Fast Response Speed, High Accuracy, Clear Display, Intuitive Readings, And Good Stability; Advanced And Reasonable Circuit Design, Strong Anti-interference Ability, And Can Effectively Suppress High-frequency Interference; The Kit Uses High-quality Materials, Sophisticated Technology, And Beautiful Appearance. Long Service Life, Extremely Convenient Installation And Use. It Is A Voltmeter Suitable For Welding And Assembling By Various Universities And Diy Enthusiasts. Kit Name: Icl7107 Voltmeter Diy Kit Pcb Size: 70.6x39mm Mounting Hole Size Of Meter Head: 77x40mm Display Window Size: 51x24mm Electrical Parameters: Working Voltage: Dc5v Working Current: 35ma Measurement Accuracy: It Can Be Calibrated To Obtain Higher Accuracy, And There Are No Parameters Temporarily. Measuring Range: Divided Into 3 Gears, 0-2v Gear Measuring Small Voltage 0-20v Range To Measure Low And Medium Voltage 0-200v Gear, Measure Higher Voltage. Colour:as Shown Material: Pcb Package Contents: 1 Set X Voltmete