OL-SA97BB Achteruitrij alarm 97db, Pieper

This product is an Ollson reversing alarm, also known as a reversing beeper or signal, designed for trucks and buses. It emits a 97dB sound when activated. An alternative version produces a crackling noise instead of a beeping sound.

• The description claims the crackling noise version is less localized than the beeping version.
• The description claims the crackling noise version does not carry as far as the beeping version.