This unique and patented device has helped protect everything from push buttons to keypads around the world for over 30 years, without restricting access to protected device. Ideal for access controls, digital keypads, smaller manual pull stations, shutdown switches in computer rooms, workshops and much more.

The STI 6540B consists of a clear, tamperproof, super tough polycarbonate cover and frame. Additional models are available with a built-in warning horn that sounds when cover is lifted to gain access to the protected device (see STI-6600-B). The STI 6540B offers excellent protection against physical damage (both accidental and intentional).