Surveying instruments; Levelling rods; Rangefinders; Odometers; Inclinometers; Pressure gauges; Gas flow monitors; Circuit testers; Planimeters; Air analysis apparatus; Meteorological instruments; Infrared detectors; Tool measuring instruments; Level measuring machines; Pressure indicators; Azimuth instruments; Rangefinders for golf; Digital weather station instruments; Thermo-hygrometers; Gas testing instruments