The Stopper II has helped prevent false fire alarms around the world for decades, without restricting legitimate operation of devices such as larger fire alarm break glass call points.

The product is UL listed and has a choice of 3 standard fire text options, or custom labelling is available. There is an optional sounder, 6 hood colours available and 2 mounting options on the largest protective cover in the Stopper series, ensuring it's suitability for any public building where there is a history or a threat of false fire alarms.