Measurement Range:1.0x103 1.0x10-1pa Gauge:ZJ-53B;ZJ-54D(Can choose interface) Measurement channels:1 channel Display Mode:LED digital display Power Supply:AC220V±10%50Hz Rated power:20W Weight:≤1KG Case size:E Control channels:2 channels(can be extended) Control range :1.0x103 1.0x10-1pa 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 )