For those in the construction industry, you know exactly how critical boom length data is to lifting safety. This reel box is purpose-built as an “electronic measuring tape” for cranes, aerial work platforms, and other heavy equipment. Mounted at the base of the boom, it uses a wear-resistant steel cable and precision sensor to transmit real-time boom extension data directly to the load moment limiter, eliminating overload risks from the source. The housing is formed from heavy-duty

A core safety monitoring component designed specifically for mid-to-small tonnage truck cranes and crawler cranes. As the “eyes” of the Load Moment Indicator (LMI) system, it accurately captures real-time boom extension length and angle data, then transmits signals stably to the controller. This prevents dangerous conditions like overloading and over-hoisting, ensuring safe lifting operations.