sako243
Member
- Messages
- 3,195
- Location
- My mansion in Wales
Something like this when connected up to a loop of wire (coaxial) in the ground will detect lumps of metal over it (might need to be ferrous). Just a mains relay switched on the output so you can hook it up to whatever you want.Just vehicles. No one walks up here.
Does mean you need to run the loop somewhere but it can normally be buried into the concrete so it's nice and protected and invisible.