1. Voltage Range: 20 to 300VAC
2. Amp Range: 0 to 100Amp
3. Operating Voltage: 230VAC
4. Diameter: 22mm
5. Direct panel mount through hole
6. 100Amp CT included
widely used in electrical panel to measure and indicate volatge and current at a same time, it has 22mm diameter which is suitable for panel door mounting, any old indicators can be replaced with this new indicator