Condition: This Mini Digital Led Voltmeter Dc0-100v Adopt 0.36inch Digital Display And Ultra Mini Size With Three Wires, Which Designed With Reverse Connect Protection Function And Used For All Kinds Of Voltage Measurement Purposes. Measuring Range:dc0-100v Minimum Input:dc 0v Net Weight:5g Material: Plastic Colour: Red Maximum Input:dc100v Display Way:3 Digits 0.36led Nixie Tube Refresh Rate:500ms/time Power Supply:dc3.0-30v Working Temperature:-10 Celsius Degree ~ 65 Celsius Degree Dimension:23*15*10mm(without Mounting Plate) Cable Length:approx. 14.5cm Installing Size:24*15mm Installing Hole Spacing:28mm Screw Specification:m2.0x12 Self-tapping Screw (not Included) Note: If You Are Not Electrical And Electronic Professional, The Electrotechnical Inst Ent Is Not Suitable For You To Assemble By Yourself. Package Included: 1 X Digital Voltmeter Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thi