A horn is a sound device mounted on vehicles to provide warning signals and alert others on the road or worksite. In tractors and agricultural machinery, the horn is used to enhance safety by communicating with other drivers, pedestrians, or workers in the field.

When selecting a horn, consider the working environment and noise levels in the area. A standard electric horn is suitable for quieter settings, while an air-powered horn is more effective in noisy environments such as construction sites. It is also important to ensure that the horn is compatible with the vehicle’s electrical system and meets local safety and noise regulations.