The VXI series is our best selling outdoor intrusion detection sensor range. It provides a very reliable approach detection with a range of up to 12m for residential and commercial applications. The sensor which should be mounted at ca 1.2m height includes two PIRs providing a double layered detection area, the sensor will only trigger when both layers are activated. The VXI sensors are animal tolerant and feature digital analysis to eclude cause of false alarm. The VXI-RDAM is the dual-technology, battery-powered model with anti-masking.