Mass notification wide area sound signals up to 1.5km / 0.9 mile radius

Model CA-4 Air Alarm

This compact design is suitable for a wide range of fire alarm and general sound signal requirements where omni-directional performance is needed. The Kahlenberg Model CA-4 has a wide area warning radius of 1.5km (3km diameter) and is built of rugged bronze castings with a stainless steel diaphragm. SPL is 133 ± 1dBA @ 1m with fundamental frequency 745 Hz ± 20 Hz.

Model CA-4 Air Alarm

Mass notification sound signals up to 1km | up to 6km | up to 8km | up to 6km | up to 8km | up to 12km | up to 16km