ITEM NAME:10x V20D 3-Cable 0.36 inch 3-Digit LED Red Light DC0-100V Digital Voltmeter Product Description Description: Brand new and high quality Measurement range: DC 0 ~ 100V Min.input voltage: DC 0V Max. input voltage: DC 100V Measurement accuracy: 1%(Â ±1 digit) Display mode:3 digit 0.36inch LED Display color: Red Power supply: 3 ~ 30V Refresh rate:About 500ms/time Operating temperature: -10 ℃ ~65 ℃ Dimensions: 25mm *15mm*10mm Installation hole: 24mm*15mm Bolt Center: 28mm Screw size: M2.0x12 self-tapping screw(not included) Lead wire length: 15cm Included: 10x DC0-100V Digital Voltmeter.Lead wire length: 15cm. Display color: Red. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. 12 months Warranty.