Home security cameras have become very sophisticated devices. The trend now is wireless equipment and much smaller size cameras can virtually be placed anywhere.
You can call any home security office and tell them you would like to install outdoor home security cameras. You would have to sign some type of contract with them but that's it.
-- circulation of hot air in a gas cooking oven
-- circulation of hot or cool air from heating/air-conditioning vents throughout the room
-- circulation of heated water up to the outlet and cold...
There are such things as security cameras that can be attached to a home network. These security cameras can then be attached to a wall or ceiling so that burglars can be tracked if they ever come to...
You can find decoy home security cameras to throw off any criminal or other person of interest outside your house at your local Home Depot or Lowe's Warehouse.