Ecco Smart Alarm Self Adjusting Backup Alarm -Sa901N

The Smart Alarm® from ECCO was the worlds first self-adjusting back-up alarm, constantly measuring ambient noise and adjusting their sound level, creating a volume that is safe without being annoying or contributing to noise pollution. Smart Alarms® eliminate the need for constant manual adjustment and help prevent intentional alarm disconnection. Compact housing and rugged construction designed for demanding applications, reverse mounted speaker enhances sound and protects the alarm from dust and moisture ingress. Epoxy sealed against dust, moisture and vibration.This alarm “listens” to the environment and adjusts from 82 to 107 dBA and can be used on 12 and 24 volt DC applications