The fundamental differences between manual counting and occupancy sensors and which is best for your needs. Despite the growing number of companies and devices in the market offering space utilization studies, they all fit in one of these two categories of data collection: manual counting or occupancy sensors. The key difference between sensors and manual counts is the type of data obtained: continuous and discrete, respectively. Manual counts are conducted by personnel, external or internal to the organization, doing timely walkthroughs around the office counting the number of occupants in all the spaces agreed during the planning phase. Occupancy sensors are usually installed in different spaces and work settings, such as under desks, chairs or ceiling. Deploying sensors has brought strong evidence to suggest that, if for manual counts done every hour, we could lose over 75 percent of all the activity that actually happened in the spaces analyzed. The cost is still a reason for choosing manual counts over occupancy sensors.
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