Brand: Bosch
Features:
- All-weather horns with external mounting
- Operating with 112-120db
- Frequency: 300/375 hertz
- Corrosion resistant horns
- World class super tone horns
- Premium quality with exclusive Bosch design
- Teflon filter technology for pressure compensation
Manufacturer Parts Warranty Description: Parts
Publisher: Bosch
Details: Bosch F 002 H50 909-8F8 High Performance Chrome Grill Replacement Europa Horn. Automotive horns did not exist till almost a hundred years ago. In 1919 Bosch developed the buzzer system, which produced a continuous and uniform tone. This tone, however, made it difficult for other road users to estimate the direction or proximity of the vehicle. Bosch later introduced the harmonic diaphragm which enable other road users to better determine the position of the warning signal. Later technological advancements led to more warning device technologies and types, such as compressed-air and electro-pneumatic fanfare horns.