... 1,Expansion tank:5L volume,-10~99?operation temperature,1Mpa maximum operationpressure(Italy)2,Circulation pump:WILO ... )3,Probe:Pressure&Temperature Probe&Check valve4,Temperature sensor:Three temperature sensor&flowmeter5,Digital disply:Temperature adjustor&Timing water ... is equipped with electric water heater setting,automatic temperature controller.6,With increased anode magnesium bar stick to ...