So you would like to track in & out traffic at your place of business on your smartphone? The PEARL Smart People Counter has you covered. It is a double sensor system that creates a dual beam signal to capture entries and departures accurately.
More gadgets like this: here
The PEARL can be installed with a 3M tape. It has a plug & play design and works with iOS/Android devices. Data is stored in the cloud securely for easy access.
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