9 Measuring or testing machines and instruments, namely, gas leak sensors, crime prevention sensors, first-aid sensors, earthquake sensors, electric leak sensors, human detection sensors, visitor sensors, call sensors, condensation sensors, air pollution sensors, oxygen sensors, illuminance sensors, sound sensors, weight sensors humidity sensors, rain sensors, water level sensors, bath water level sensors, bath heating sensors, water leak sensors, water overflow sensors, fire sensors, cigarette smoke sensors, CO2 sensors, gas sensors, VOC sensors, differential pressure sensors, air speed sensors, odor sensors, flame sensors, electric energy sensors, current value sensors, water flow rate sensors, micromotion sensors, passage sensors, bed presence sensors, open/close sensors, activity amount sensors, human body location sensors, snow sensors, weight scales, watt-hour meter, water flowmeter, gas meter; power distributing boxes; rotary converters; electrical phase modifiers used to control and modify electric current and signals; solar batteries; batteries and electrical cells; measuring apparatus and instruments for measuring temperature, humidity, air current, illumination intensity, luminous intensity, pressure, effluvium, and detectors for sensing the presence of human bodies; telecommunication machines and apparatus, namely, television and display screen; electronic machines, apparatus and their parts, namely, electric locks