Disaster Warning
The A140 disaster warning alarm sounder is a compact high powered unit with an effective range of approx. 1km. Applications are diverse, from large industrial, agricultural or forestry sites, quarries and others where there is a very high ambient noise level or warnings have to be audible over large distances.
A140 Disaster Warning
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A140 Installation and positioning considerations.In general the sounders should be mounted horizontally 10 to 15 meters above the ground, with due consideration for their location; generally the highest point on the site to be covered, although not so high so as to avoid the sound traveling over the top of the area. A general guide: determine the height of any obstruction within 50 metres and keep the sounder at least 2 meters higher than this for the best sound coverage - ideally the source to target should be aimed at or in 'line of sight'. |