Frequently Asked Questions

Does it work?

Yes.

Spell it out for me

Green Shield is a humane pest control device that does what it says: it controls pests. It will flush them out of your building.

How does it work then?

Green Shield is a little box that you plug into a socket. It's really simple.

Once you've plugged it in, it immediately starts broadcasting an electromagnetic field around the house. The field is like a bubble, but it also extends around the electric cables in your walls.

The field pulsates, and that's important. The frequency of the electromagnetic waves goes up and down incredibly fast, constantly for three minutes. Then the Green Shield stops, for one minute. Just when ratty or mousy thinks everything's fine again, ZAP! It starts up again.

Rodents hate this. It drives them crazy. They find the sensation very uncomfortable. All they can do is move away from it - and out of your property.

Really?

Really.

Where should I plug it in, then?

Somewhere central if you want to pro-actively prevent future infestation. If you've seen or heard the pests in a particular place, you can plug it in nearer to them if you like.

Plug your Green Shield into the ring main - which in most houses means any of the floor-level power sockets found in most rooms.

It's important to plug it into a circuit that goes round the house; this is how the electromagnetic field spreads further and causes the pests more trouble.

Who are you people?

Our company is called Green Shield Ltd. We are the only device company with membership of the British Pest Control Association. We've been members of that organisation since 2005.

How many Green Shields do I need?

For a typical 2-storey, 3-bedroom house, one will do. If your house is larger or the wiring isn't so modern, we'd recommend one per storey. When you've got several plugged in, try to arrange them at opposite ends of the house, to maximise the spread of the field.

Will it bother my pets?

Some pets, yes. Do not use a Green Shield if you own hamsters, gerbils, rabbits or other tame rodents. Birds, dogs, cats and fish are unaffected, so you don't need to worry about them.

Does the field interfere with computers or other appliances?

No.

What animals is Green Shield guaranteed to work on?

Rats, mice and other rodent pests. Some customers have told us that it works on ants, spiders, crickets and squirrels, but we've not confirmed this with independent tests so we don't guarantee it.

Will I ever see another pest after plugging the Green Shield in?

Yes, you might. They might come in looking for food, especially if you've left some out in a place where they can get at it. But they won't hang around and they won't look for somewhere to nest. They'll soon leave, going out the same way they came in.

How long will a Green Shield keep working?

The average life of one unit is three to five years. If the green light ever stops flashing (either permanently on or off), the unit has stopped working. If the light is flashing but you think the machine has stopped working, here's a simple way to test it: dangle a paperclip on an elastic band or a piece of string, close to the machine (about 1cm away). If the unit is functioning properly, the paperclip should be pulled towards it once every second or so. Don't forget, though, that the machine "rests" for one minute out of every four, so check over a period of five minutes just to be sure.

What guarantee do you offer?

You have a free one year guarantee from the date you purchased the Green Shield. If it stops working in that time, send it to us with your receipt and we'll replace it, no quibbles.

Should I leave it plugged in all the time?

Ideally, yes. It won't hurt to unplug it for short periods, but don't be tempted to switch it off while you go off on holiday, for example. The pests will come back as soon as they think things are back to normal.

Doesn't it use a lot of electricity?

No, not really. About the same amount as a nightlight.

Does it affect pacemakers?

If you or someone in your household uses a pacemaker, follow the same advice that your doctor has given you regarding any electrical devices. The unit complies with CE regulations.

Can I use a Green Shield outside?

No, it won't work. There's no wiring surrounding outside areas, so the electromagnetic field won't be strong enough.

Does it deal with squirrels in the attic?

We haven't tested it for that, but one of our customers did by draping a long extension lead in "s"-shaped curves throughout the attic space, then plugging a Green Shield in at the end. They said it worked for them, so we suggest it's worth a try.

Is the Green Shield unit recyclable?

Yes. If you have any Green Shield units that you want to recycle, you can either:

Bring your old product into our offices at Hoppingwood Farm or
Post the units to us at Green Shield Limited, Hoppingwood Farm,
Robin Hood Way, London, SW20 0AB

LOOK FOR THE LOGO

All new Green Shield units can be recycled! You can tell because our products include a 'crossed out wheeled bin symbol' like the example on the right.

Even if your old Green Shield product doesn’t have the ‘crossed out wheeled bin’ symbol, the good news is we’ll gladly accept and recycle your old Green Shield Unit to the best of our ability.

Unwanted electrical equipment is the UKs fastest growing type of waste, and sending it to landfill causes lead and other toxins to leak out and cause soil and water contamination, harming wildlife and human health.