Performance. The model MH door operator is designed for use on high or vertical lift sectional doors or small rolling doors and grilles. Ideal for smaller, lighter commercial doors with mid-range duty cycle requirements, Connectivity, Dock Management - Improves visibility of dock operations in your warehouse. Analyze the load, turn and dwell time at each dock in the facility and make data-driven decisions that allow you to derive insights from the dock space and improve operations. Upgrade to Logic 5.0 for added diagnostic functionality, Included Accessories.