ECCO's most compact and popular line of back-up alarms, the ECCO 500 Series Alarm provides a cost-effective warning solution with ECCO quality and reliability. A glass-filled nylon housing with epoxy-encapsulated electronics provides exceptional durability and protection against moisture, dust, and vibration. The ECCO 500 Series Smart Alarm measures ambient noise and adjusts sound levels, 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 size and universal mounting bracket maximize location options• Self-grounding with stud terminal connections• Sealed in epoxy for protection against dust, moisture, and vibration• Easy to installSpecsAlarm Type: TonalMount: 2-BoltSound Level: 97 dB(A)Voltage: 12V Measures ambient noise & adjusts sound levels to safe volume Eliminates need for constant manual adjustment Helps prevent intentional alarm disconnection | Ecco 500 Series Surface-Mount Alarm