About this asset

This Revit annotation symbol represents a motion detector in electrical floor plans using a standard circular M-marked icon. The symbol consists of a central circle containing the letter M, representing a motion detector. Four lines extend radially from the cardinal points of the circle, creating a clear, legible icon suitable for small-scale electrical layouts. The linework is clean and vector-based, ensuring it remains crisp at various print scales. As a standard drafting element, it provides a consistent visual language for MEP documentation. The geometry is designed to be easily identifiable within busy floor plans, allowing contractors and engineers to quickly locate sensor positions without cluttering the architectural background drawings.

The download is a 51 KB file containing a Revit family (.rfa). Load it into a project from the Insert tab with Load Family, then place it like any other component of its category; it schedules and tags with the rest of your model.

In Revit, this file is loaded as a generic annotation family. Users can place it directly onto floor plan sheets or within drafting views to indicate sensor locations. Since it is a 2D symbol, it does not require complex rendering settings or material assignments. It is best managed through a specific subcategory within the electrical annotation branch, allowing designers to toggle visibility across different drawing sets or phases through view templates and visibility graphics overrides.

This symbol is essential for professionals producing electrical, lighting, or security plans for residential, commercial, or industrial projects. It is typically used during the design development and construction documentation stages to detail the placement of occupancy sensors and motion detectors. Architects and electrical engineers will find this useful for standardising their drawing sets, ensuring clear communication with contractors on-site. It pairs effectively with other standard electrical symbols like light switches, power outlets, and junction boxes to create comprehensive, professional-grade MEP documentation.