Digital weather station instruments; Surveying apparatus and instruments; Electronic plant moisture sensor; Acidity meters; Surveying instruments; Thermo-hygrometers; Acidity analysers; Soil sampling equipment, namely, tubular liners or tubular sleeves; Passive infrared detectors; Gas flow meters; Electronic locks; pH meters; Scientific measuring instruments, namely, conductivity meters; Air quality measurement apparatus, namely, particle counters; Rangefinders for golf