This back up alarm is rated for 97dB.
Operating Voltage: 12 – 24Vdc Temperature Range: -30°C to +55°C Weight: 12.2oz (345g) Housing: Fiberglass Filled Nylon Connection: Connect Black Wire to Positive | Connect White Wire to Ground Polarity: Reverse Voltage Protected Mounting: Horizontal or Vertical Compliance: SAE / DOT