Products: Video Turnstile Dwell Meter

How Long do People Spend in one Place?

Test Effectiveness of Displays, Log Queuing Time, etc

With Biodata's new Dwell Meter you can see how long customers spend in an area and how often an area was visited. For example, a store could test the effectiveness of new displays, compare one display with another and evaluate new store layouts. No customer wants to spend time queuing and a Dwell Meter accurately monitors and reports waiting times at counters and checkouts. This information can be used to make decisions on opening more or fewer facilities.

The Dwell Meter is part of Biodata's Video Turnstile people counting system. Using an overhead camera it detects a person entering and leaving a zone. Windows software supplied with the system (called Windmill) reads data from the dwell meter, in real-time if necessary.

Histogram produced with an Excel spreadsheet

You can choose the length of time over which to record visits, and have differing intervals. For example, you could count the number of people visiting a zone every 2 seconds for the first 24 seconds and every 10 seconds for the next 2 minutes.

Data can be analysed with almost any software, including Microsoft Excel. We offer VisualTrends Lite free of charge, or can supply the full-blown version, Visual Trends, which enables you to view results over the Internet. With all of these you can produce histograms showing how many people stayed for how long. The example above shows 122 people who were just passing through the zone and stayed for less than 2 seconds, 119 people stayed for 2-4 seconds, 86 people stayed for 4-6 seconds, and so on.

Depending on your settings, you can show results for an hour, a day or some other time interval. It's easy to add results together, so if you decide that your original time intervals were too short you can just combine intervals together for another view.

Communication Options

The Dwell Meter is available in RS232, RS485, Ethernet and WIFI versions and can connect directly to a PC or modem. It is simple to install and requires little or no maintenance.

Evaluate Decisions and Improve Customer Satisfaction

The Dwell Meter gives you a powerful and efficient way of evaluating the effectiveness of point of purchase marketing. It provides accurate information on which to base management decisions and helps you improve customer satisfaction.


A single Dwell Meter costs £535. This includes all the cabling, the overhead video camera and the Windows software. The Dwell meter can communicate with the PC via modem, Ethernet, RS232 or RS485. Should you wish to purchase over the internet, we sell through Retail Sensing. If you would prefer to request quote for a people counting system and dwell meter, or to discuss your application, please fill in our on-line questionnaire.


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10 Stocks Street, Manchester, M8 8QG, UK
Tel: +44 161-834 6688
Fax: +44 161-833 2190