Learn the science of connecting an electric circuit and construct your own door alarm!
Put together your kick wire door buzzer and place it behind your door. Stop intruders from entering your headquarters!
Contains: A cool cyber-looking plastic platform and alarm casing, 1 set of plastic accessories, metal pegs, electric buzzer, electric wire, string for alarm trigger, full colour detailed instructions and a door warning "dare you to enter - highly sensitive intruder alarm installed".
Requires 2 x AA batteries (not included)
4M branded products regularly receive worldwide awards for both their science and craft products. They are strongly committed to providing safe experimental kits for your to children to play with.