With solenoid valve drive functions, automatic or manual on / off solenoid valve.
You can shop solenoid valve at https://vedardalarm.com/solenoid-valve-for-gas-control-12-p-46
MD-2003R is Focus brand meian tech manufactured wireless home security system. It should only work with same brand wireless alarm panel ST-VGT, ST-IIB, FC-7688 etc. and remote controller, wireless siren strobe.
