The VXS-RDAM-W from Optex is a Wireless-ready Dual-Tech Model with Anti-Masking. The VX Shield series is a range of four outdoor PIR sensors providing 40ft by 90° detection coverage, ideal for all residential and small commercial sites. Featuring customizable design and high accuracy against false alarms, the VX Shield series includes two PIR models and two dual-techs, all equipped with digitally-Enhanced signal recognition logic as well as super multidimensional analysis (SMDA). Analyzing detection patterns and environmental information, SMDA improves immunity against temperature changes or moving trees and vegetation, reducing the risk of false alarms.