Use "warning horn" in a sentence

1. No signalling device such as a warning horn or reversing alarm is to be operated during the test

Aucun dispositif d

2. No signalling device such as a warning horn or reversing alarm is to be operated during the test.

Aucun dispositif d'avertissement tel qu'un klaxon ou un avertisseur de recul ne doit être utilisé pendant l'essai.