Supplementary to Audible Alarms: VADs are especially efficient in higher-noise locations or exactly where hearing protection is worn, supplementing conventional audible alarms. Ampac is a Halma Organization. A gaggle of life conserving technological know-how businesses devoted to rising a safer, cleaner and healthier globe for everybody, on a daily basis. https://health-lists.com/story19149275/addressable-sounders-fundamentals-explained