Bosch 0603683000 ptd1 infrared thermometer optics 10 1 20 to 200 c bosch diy 0603683000 p this thermo detector from bosch is an ideal companion for the professional tradesman looking to detect thermal bridges and mould risk areas the detector has been manufactured to a high standard and is equipped with a host of excellent features including the one touch button which analyses poorly insulated windows or locates uninsulated areas on exterior walls p p depending on the mode the ptd