G4 Gas Meter - The U6 Replacement with Pulse Plug and Lead The G4 gas meter is a diaphragm meter that's been designed to replace the standard U6 meter in installations with a connection centre distance of 152mm. This meter is perfect for domestic and light commercial installations where you need a high-accuracy measurement of up to 6m^3/h. That's all you need for reliable tracking of gas consumption when it comes to billing, monitoring and energy management. It comes with a separate pulse plug and 2m long lead. This makes it super easy to integrate with monitoring systems like the ones used with Metrix Gas Meters. Plus, the wiring layout is simple to follow – just green & brown for the pulse count and white & yellow for control. No fuss, no mess and no errors. Built from high quality steel to European standards this G4 meter is buil