STI-1230-Y Stopper II without Horn with Spacer - Yellow

This unique and patented device has been helping stop false fire alarms around the world for more than 20 years, without restricting legitimate alarms.

Stopper II consists of a clear, tamperproof, super tough polycarbonate shield and frame that fits over manual pull stations. 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 1100).