Handheld Digital Light Meter LX1330B Illuminance Meter Measuring 200000 Lux, High Accuracy and Rapid Response. The LX1330B can measure from 0 up to 200,000 lux
HT-9600 / HTI เครื่องวัดฝุ่นละอองในอากาศ Particle Counter Handheld PM2.5 และ PM10 Particle Counter Handheld This handheld dust quick detector is the special detecting instrument used to measure the value of PM2.5 ...