Microwave & PIR dual-tech detection1. Patented fuzzy logic analysis 2. Superior RFI/EMI immunity3. Full-range temperature compensation patented4. Sensitivity maintain consistent whatever circumstance changes5. Automatic frequency modulation and accommodation 6. Linear transmission adopted to resist interfere 7. Serial interfere immunity technology 8. Function programmable and flexible application9. Down-look window to eliminate detection dead angle producing area:China