A reminder needs to be installed in the driver's cab of engineering vehicles. Reminder refers to the device inside a vehicle that can remind the driver to pay attention to the working conditions or certain states of the vehicle. The functions of some reminders include detecting oil levels, engine malfunctions, clutches, brakes, etc., to ensure that the vehicle is in good condition and reduce potential safety hazards.

In addition, some vehicles may need to operate under specific operating conditions, such as lifting, turning, tipping, etc. In this situation, the driver needs to ensure that the vehicle is operated correctly and understand the state of the vehicle during operation. The sound or indicator light of the reminder can help the driver better grasp the status of the vehicle and improve operational safety.