Product Details: The Ecco 400 Series 12/24V 87 / 112-Decibel Smart Back-Up Alarm is the perfect solution for any vehicle or equipment that needs to be heard. This alarm is designed to constantly measure ambient noise and adjust its sound level accordingly, creating a safe volume without being annoying. Its small size and lightweight design make it easy to install. This back-up alarm's resistance to moisture, dust and vibration make it a reliable choice for any environment. Its adjustable sound level and intelligent technology make it the perfect choice for any vehicle or equipment that needs to be heard. FleetPride is your First Click in Heavy Duty®.