Remotely-controlled sub-aquatic video camera containing a TV camera, transmitter, receiver and microphone to record, detect, measure, survey and locate objects underwater; GPS navigation device; Surveying instruments; Global positioning system (GPS) apparatus; Magnetic wall stud finders; Cyclocomputers; Radiation-measuring instruments; Electric bark control dog collars featuring citronella spray, static electricity; Thermometers not for medical purposes; Electronic navigational and positionin...