Grote Industries Smart Medium Noise Surround Backup Alarms

Grote's backup alarms will warn others that you are backing up. The electronics are sealed in epoxy for protection against dust, vibration, and moisture, which in turn helps to protect against spikes and surges. These Grote alarms measure ambient noise levels and instantly self-adjust to at least 5 dB louder. They automatically adjust to eliminate confusion on which volume to select. Grote manufactures these alarms from quality materials to ensure performance and durability.