This back up alarm is rated for 112dB.
Operating Voltage: 12 – 24Vdc Temperature Range: -30°C to +55°C Weight: 16.1oz (456g) Housing: Fiberglass Filled Nylon Connection: Connect Red Wire to Positive | Connect Black Wire to Ground Polarity: Reverse Voltage Protected Mounting: Horizontal or Vertical Compliance: SAE / DOT