Shop for Electrical at The Home Depot. This compact digital thermometer conceals a complete spy camera system. Hide it in plain sight by sticking it on a wall or placing it on a table, countertop, desktop or mantel. Great for any room in a house, an office, a hotel room, a meeting room, a garage or workshop, a retail store or anywhere there is a wall. Each HCDigitalThermo system contains a high grade covert video camera (great in low light), built in DVR and PIR motion sensor to preserve the battery life.