Use "stethoscopes" in a sentence

1. Acoustic stethoscopes are limited in their ability to transmit and amplify sound.

Des stéthoscopes acoustiques sont limités en capacité pour envoyer et amplifier des sons.

2. Automotive testing equipment, in the nature of brake fluid testers, battery testers, electric testers, motor mechanics stethoscopes (for non medical use), anti-freeze hydrometers, acid hydrometers for batteries

Testeurs de compression pour moteurs à essence et diesel