630 Back-Up Alarm 107 Decibel $130.73 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details Compact housing and rugged construction designed for demanding applications, reverse mounted speaker enhances sound and protects the alarm from dust a... Details Back DetailsCompact 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.