It is mainly used for real-time detection of the running speed of the belt conveyor. When the belt conveyor stalls, this product can send out an alarm signal in time to prevent serious accidents caused by slipping between the conveyor belt and the main roller. This product is a contact design, which has the characteristics of flexible installation and easy to use. It is suitable for multi-point detection of ultra-long-distance conveyor belt conveyors! There are contact and non-contact type.