Sounder Open Area Red Alarmsense IP65The Apollo AlarmSense Open Area Sounder is specifically engineered for effective audio alerting in large, open spaces. Designed for use with AlarmSense two wire systems, this robust and reliable sounder is ideal for both commercial and industrial environments where clear and consistent sound output is critical. With an IP65 rating for weather resistance and compliance with BS 5839, it delivers dependable performance even in challenging conditions.