Product Key Performance Indicators: 1. the measured signal in the form of: current, voltage, varistor; 2. Enter allow overload: twice the input signal; 3. voltmeter input impedance:> 500KΩ; 4. meter loop resistance: <50Ω; 5 Effective shows the number of segments: 20 segments; 6. Bargraph length: 57mm; 7. column display width: 12mm; 8. paragraph spacing: 3.0mm; 9. Power supply: DC5V-DC24V; 10. Typical power consumption: ≤200mW ( FS) 11. Accuracy: current, voltage (± 0.5% FS ± 1segment), rheostat (± 1.0% FS ± 1segment);