Features: -Immune to animals weighing up to 18kg (40lb) -When a higher level of immunity is required, such as when animals are constantly in the detection area, consider using DG75 -11m x 11m (35ft x 35ft) and up to 15m (50ft) for center beams with 88.5° viewing angle -Extremely high EMI and RFI rejection -PCB uses only surface mount components -Solid-state relay -Patented Auto Pulse Signal Processing -Automatic Temperature Compensation -Metal shield maximizes protection from EMI and RFI signals -Dual element sensor -Anti-tamper switch