This voltmeter has fast response speed, high accuracy, clear display, intuitive readings, and good stability;<br> advanced and reasonable circuit design, strong anti-interference ability, and can effectively suppress high-frequency interference;<br> the kit uses high-quality materials, sophisticated technology, and beautiful appearance.<br> Long service life, extremely convenient installation and use. It is a voltmeter suitable for welding and assembling by universities and DIY enthusiasts.<br> Kit name: ICL7107 voltmeter DIY kit<br> PCB size: 70.6x39mm<br> Mounting hole size of meter head: 77x40mm<br> Display window size: 51x24mm<br> Electrical parameters:<br> Working voltage: DC5V<br> Working current: 35mA<br> Measurement accuracy: It can be calibrated to obtain higher accuracy, and there are no parameters temporarily.<br> Measuring range: divided into 3 gears, 0-2V gear measuring small voltage<br> 0-20V range to measure low and medium voltage<br> 0-200V gear, measure higher voltage.<br> Colour:As shown<br> Material: PCB<br> Package Contents:<br> 4 set x Voltmeter spare parts<br> Only the above package content, other products are not included.<br> Note: Light reflection 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.