System Sensor
SpectrAlert Advance Low Frequency Sounders and Sounder Strobes
System Sensor SpectrAlert Advance Low Frequency Sounders and Sounder Strobes meet the new NFPA 72 2010/2013 low frequency requirements for certain new sleeping spaces. These devices were designed to easily integrate into the panel’s notification appliance circuit (NAC) line and provide audibility and tone requirements needed to awaken individuals. The SpectrAlert Advance universal mounting plate uses an onboard shorting spring, so installers can mount the plate and test wiring continuity before the device is installed. The low frequency sounder and sounder strobe devices are easily retrofitted into existing SpectrAlert Advance notification applications while also delivering greater flexibility for the new code requirements.
http://www.systemsensor.com/en-us/Pages/AV-LowFrequency.aspx