... to device, the electric grid power supply voltage, a voltmeter monitoring with lights the fuse protection, control panel of ... output: dc current: 0 to 20mA adjustable output; Dc digital voltmeter/ammeter: voltmeter range 0 ~ 200V, input impedance for l0MΩ}, precision 0 ... (AC/DC/RELAY) host, integrated digital quantity I / 0 (14 road digital input / 10 road digital output), RS 485 communication mouth, ...