ITEM NAME:Mini Digital Panel Voltmeter DC 3 - 100V Red 3 Digits P9L7 Mini Digital Panel Voltmeter DC 3 - 100V Red 3 Digits P9L7 Brand new and high quality Affordability Easy to install Size: 2.3 x 1.5 x 0.8 cm LED Color: Red Voltage Range: DC 3-100V Cabling: The blue and red cables connect the anode and the black with the negative terminal. accuracy: 0.1% refresh rate: 200 ms once measuring range: 0-100V supply range: 0-30V Current: Less than 8 mA package content:1 x Mini voltmeter Note:Light shooting 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 +/-1-3 cm..LED Color: Red. refresh rate: 200 ms once.