STI-6545 Mini Stopper II without Horn with Spacer

This unique and patented device has been helping stop false fire alarms around the world for more than 25 years, without restricting legitimate alarms.

Mini Stopper II consists of a clear, tamperproof, super tough polycarbonate shield and frame that fits over manual pull stations. Cover contains no horn. Designed for surface mount units, spacer has knockouts for exposed conduit. Additional models are available with a built-in warning horn that sounds when cover is lifted to gain access to the pull station (see STI-6600).