Measurement Range:1.0x105 1.0x10-5pa Gauge:ZJ-52,ZJ-27(Can be choose) Measurement channels:2 channel Display Mode:LED digital display Power Supply:AC220V±10%50Hz Rated power:55W Weight:≤6KG Case size:C Control channels:2 channels(can be extended) Control range :1.0x105 1.0x10-5pa Control mode:threshold or range Rated Load of the control device:AC220V/3A noninductively load Control Accuracy:±1% Reaction Times:<1s analogy output:0 5V;4 20mA(choose) communication Interface:RS-232;RS-485(choose );