MODBUS/RS485，High speed Bi-directional infrared People counter
Features:
- Speedy Bi-directional detect：LED indicate， 98% accuracy in narrow gate, detect span over 18 meters.
- Built-in data logger: 3000+ Non-violate time stamped recorders, programmed time period from 1-1440 minutes.
- Data uploading: RS485/MODBUS to PC, data collecting, parameter setting, via BS+CS server and PC software, accomplish data store and show.
