Make your every move safer with an ECCO multi-frequency back-up alarm. These alarms provide a safe warning signal for those in the danger zone of a backing vehicle while minimizing noise to those nearby. This alarm emits sound at multiple frequencies attenuated above 400Hz so that the sound is perceived to dissipate more quickly than a conventional pure-tone alarm. ECCO multi-frequency back-up alarms are available in multiple decibel options and feature a compact and rugged housing design. Get yours and mount it anywhere with the surface mount hardware.