Ambient Noise Sensors
ASL Safety & Security has developed a range of devices employing Ambient Noise Sensor (ANS) technology to help maximise the efficiency of PA/VA announcements. The ANS system is to adjust the volume of announcements based on a measure of the ambient noise in the PA zone in order to maintain a set volume of Public Address audio above the ambient noise, guaranteeing that the announcement is intelligible but at a comfortable level.
ANS02 IP40 Ambient Noise Sensor
The ANS02 is an IP40 rated Ambient Noise Sensor designed to work with the whole range of ASL Safety & Security Public Address and Voice Alarm systems. Two ambient noise measurement ranges are selectable, depending on the required system volume and expected ambient noise level: High Range from 65 dBA to 95 dBA, and Low Range from 55 dBA to 85 dBA. The ANS range is selectable via internal switch, and is identified by external LEDs. These LEDs also provide a useful visual indication of the unit’s operation, as their brightness varies with the ambient noise level.
ANS04 IP65 Ambient Noise Sensor
The ANS04 is an IP65 rated Ambient Noise Sensor designed to work with the whole range of ASL Safety & Security Public Address and Voice Alarm systems.
ANS04E IP65 Ambient Noise Sensor (Extended Temperature Range)
The ANS04E is an IP65 rated Ambient Noise Sensor designed to operate under extreme temperatures, from -40°C to +50°C. The ANS work with the whole range of ASL Safety & Security Public Address and Voice Alarm systems and VIPA IP-based systems. Each Public Address or Voice Alarm system is able to support the connection of multiple ANS04E units, each of which interfaces to an analogue input of a BMB01 Remote I/O Unit.
