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
A2000-ET Sound & Light Alarm Hygro-thermometer เครื่องวัดอุณหภูมิและความชื้น alarming thermo-hygrometer measures temperature and humidity with various levels of high precisions and sound&light alarming capability. Large ...