Digital Light Meter /Luminous Flux Meter/Light Meter AR813 Measuring Range 1100,000 lux Accuracy<4% rgd±0.5%f.s Unit Selection Lux Measure Level Seletion Auto Data Hold
Anemometer Air Velocity Meter เครื่องวัดความเร็วลม > เครื่องวัดความเร็วลม เครื่องวัดแสง เครื่องวัด อุณหภูมิ ความชื้น 4 in1 Humidity, Temperature Light and Anemometer 850070
401021 / EXTECH เครื่องวัดแสง Light Meter A low cost aternative to a full size meter with display - simply plug in to your multimeter for direct measurements in foot candles
401025-NIST / Extech เครื่องวัดแสง Light Meter Measures light levels to 5000 Fc (Foot-candles) and 50,000 Lux with 5% accuracy. This product includes a Traceable Certificate with full Data and Uncertainties.
401036-NIST / Extech Datalogging Light Meter With Calibration Certificate Capture and transfer up to 16,000 readings with selectable sampling rate.Maximum reading and data hold plus low battery indication
407026-NIST / Extech Heavy Duty Light Meter with PC Interface FC/LUX with NIST Calibration Microprocessor assures maximum accuracy plus special functions.Super large 1.4" LCD display
Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large LCD (11/2" high, 38.1mm) with bar graph, low battery and over range indications.