Sensors & Software: The New RRII Rescue Radars from Canada are compact and durable rescue equipment for Search & Rescue teams to quickly find survivors who are trapped underneath various surfaces: Rubble, Soil, Air, and Snow. Controlled by a 75m. maximum Wi-Fi "Android Tablet Controller," which helps the operator avoid other disasters that may happen in the area. Adjustable detection depth up to a maximum of 30 m, depending on the surface. Low maintenance, and always ready for deployment.