sec.sys. |
PIR (MichaelBurov); passive infrared sensor (MichaelBurov); passive infra-red sensor (MichaelBurov); passive infra red sensor (MichaelBurov); passive IR sensor (MichaelBurov); PIR-based motion detector (MichaelBurov); PIR sensor (MichaelBurov) |