Wisner CH402 AC 220V Digital Pressure Vacuum Vakum Controller Indicator -10kPa - 10kPa include Sensor Transmitter WPT-71G 4-20mA Minus Negative -0.1 Bar 100mBar 100 mBar mili Bar 0.1Bar 10 kPa output Relay SSR CH402-F802-MV-AN/PS Panel Mounting 96 x 48 mm