This Digital Coulombmeter unit by Unilab is a quantitative alternative to the gold-leaf electroscope with internal capacitance 1µF and max. p.d. between terminals of 100V. It can be charged by contact or by induction by bringing a charged body up to the 25mm collecting plate. The 3½ digit display shows charge in the range of -1999 to +1999nC. A reset button discharges the unit as required. Two 4mm terminals on the top are used for connection to ground and to the charging body.Digital CoulombmeterRange: 0-1999nCAccuracy: ±10% of F.S.D.Overload Capability: 100VInternal Capacitance: 1µFMaximum Potential Difference: 100VMass: 0.25kgDimensions: 95mm x 90mm x 50mmThe unit is powered by an internal PP3 battery which is not included but is available to purchase separately (B8R05410).Associated Products:Electrostatic Rods: B8A47969 B8H26631 B8L01491EHT Power Supply: B8R02653