The EWP-202C is a two channel wireless annunciator system with an on/off switch. It delivers a pleasant chime along with a recorded count. It emits a continuous invisible dual beam across the doorway to the reflector. When either beam is interrupted, it announces the entrance and exit of customers with a pleasant distinguishable chime sound. The dual entry/exit counter registers a count any time the beams are interrupted. Each event is counted, recorded and registered by the built-in digital counter and can be viewed and compared later in both modes. The in/out counter integration lets you utilize the information in ways never before possible. Ideal for strip malls, office buildings, liquor stores, large retail establishments, warehouses, parking structures, donut shops, medical offices, drive-thru fast food restaurants or just to monitor in and out traffic.