This unit is a remote electronic switch with a solenoid gas shut off valve. It can be linked with the Mini or Dual Gas Alams as a gas shut down system, or purchased as one unit in the form of a gas monitoring system. It has no sensors. The solenoid valve itself is mounted close to the gas bottle, downstream of the pressure reducing valve. The valve can only open when powered. The solenoid valve is connected to two-core cable to the Gas Valve Controller. The Controller draws 14 milliamps with the valve closed and 355 milliamps with the valve open.