The Unilab BEK Voltmeter is a new addition to the Unilab Basic Electricity Kit. This simple miniature Voltmeter is an ideal way to make Voltage measurements in electrical circuits.Specification:Resolution: 10 mVAccuracy: ±2%Input Impedance: 1MΩConnectors: 4mmBattery Life: 300 hours (Typ)Battery: 2 x AG13Maximum Voltage: 20V dcDimensions: (L)60mm x (H)20mm x (W)30mmBEK Digital Ammeter is also available (B8R07818).