In addition to double lock and double sashes, Mr. Greenwood tested various other home security system.
camera with infrared sensor
He increased number of out door lights equipped with automatic lighting device and spotlights with infrared sensor. Strong spotlight with halogen lamp is effective, but short life is disadvantage.
Hologen Lamp
He also tested house watching through Internet using Qcam Express. He found that due to unknown reasons, PC freeze up within a week.
October 25, 2002
Rev. December 11, 2006