... Intrusion Detection for Remote Areas with No Electricity. ► Early warning sensor; ► Concealed perimeter protection; ► Solar powered battery; ► Wireless alarm transmission; ► 2 lines x 250 m; ► Suitable to protect perimeters with no fencing. CVD-114 security sensor is a vibration-seismic security detector applied to detect unauthorized attempts to cross the secured area by crossing the perimeter line without any fencing. The sensor connects 2 x 250m lines laid underground to serve as an early ...