This voltmeter has fast response speed, high accuracy, clear display, intuitive readings, and good stability;advanced and reasonable circuit design, strong anti-interference , 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 universities and DIY enthusiasts.Kit name: ICL7107 voltmeter DIY kitPCB size: 70.6x39mmMounting hole size of meter head: 77x40mmDisplay window size: 51x24mmElectrical parameters:Working voltage: DC5VWorking current: 35mAMeasurement 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 voltage0-20V range to measure low and medium voltage0-200V gear, measure higher voltage.Colour:As shownMaterial: PCBPackage Contents:1 set x Voltmeter spare partsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.