My friend Richard (whose nickname is Ermine) runs the low carbon community farm with his wife. He is an electronics genius and has got the whole farm monitored for several temp sensors, humidity (for incubators), water supplies for chickens and geese, and also security monitoring. all of this is powered from a 12V local battery charged with a solar panel along with an electric fence to guard the livestock. There is also an audio amplifier and outdoor loudspeakers that usually relay ICR-FM or a local selection of music from ipods/smartphones for those who are packing veg boxes to listen to.
The stoat (look carefully at RHS bottom of picture) will get about 1 500- 2 000 volts across its snout if it breaches the perimeter. This is a nasty bite (even 120V DC from ISDN extra power isn’t pleasant!) but at a low current so will not do it (or any other creatures) any permanent harm, it should hopefully discourage it from trying to get at the chickens….
