Laying Wire Ouside Underground for Alarm for Metal Shed

[fireside]

Hi

I have built a metal shed on concrete base. As so I can not operate gsm alarm due to the shed not allowing the signal to travel.

So to have it alarmed I have a wired home alarm which will allow me to designate a sensor to that zone.

So my question is...
How would I run a 6 core alarm wire 30m to the house?

I want to bury it underground to avoid it being tampered with.

What would I cover the wire with that is suitable to be in the ground without spending a fortune.?

At point of shed entry from wire coming out of the ground to shed, what connection could I use which I could bolt to shed, water and tamperproof?

Many thanks

[ericmark]

One can get special cable, but I would tend to put standard cable in a plastic pipe an old hose pipe for example as the proper stuff is a bit expensive.

[fireside]

One can get special cable, but I would tend to put standard cable in a plastic pipe an old hose pipe for example as the proper stuff is a bit expensive.

Thanks ericmark