A highly versatile range of attractive key switches combining unique design, quality and value, with or without a protective cover or pre-alarm. These aesthetically appealing, low / high voltage switches fit any standard UK-type switch socket box, and are quick and easy to install. Models are for applications where casual activation is discouraged. The switch can only be activated with a key. All models are available in a variety of Colors with space for corporate branding, function marking and operating instructions. A number of standard models are available for quick delivery but enquiries for custom models are welcomed. It is advisable to protect your Stopper Switches with an STI Euro Stopper. The protective cover consists of a tough polycarbonate material and is available with or without integral sounder. The cover adds an extra measure of protection against damage and tampering.