These tags can be concealed on the vehicle as there is no need for line of sight for them to work. In addition to the longer distance, they also correctly detect at speeds over 650 Km/H (400 MPH) from any angle, instead of only in front of the vehicle like passive tags. SkyRFID successfully deployed the active tag technology with airborne helicopters and small aircraft to achieve even greater distances to locate equipment on oil fields, large construction sites, ranches, military training grounds and city/emergency vehicle fleets. SkyRFID active tag solution uses high security synchronous (symmetric) encryption, pairing the tags and readers for your unique deployment. No other 433 system will be able to read your tags, and no other system’s noise will interfere with your readability.