Description ECCO’s most compact and popular line of back-up alarms, the 500 Series provides a cost effective warning solution with ECCO quality and reliability. A glass-filled nylon housing with epoxy-encapsulated electronics provide exceptional durability and protection against moisture, dust and vibration. ECCO’s 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. Voltage – 12-48 dB(A) – 97 Apms – 0.1 SAE Type C, CE, R10, UL, AMECA Brand: Ecco Safety Group