â·ÃÊͺ¶ÒÁÃÒ¤Ò à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ áÅÐÍسËÀÙÁÔ ÁÒâ¹ÁÔàµÍÃì à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹µèÒ§ Differential Pressure Meter > à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ ¤ÇÒÁàÃçÇÅÁ Anemo-Manometer DT-8920 DT-8920 Pressure and Flow Meter 8920 is a Pressure and flow meter simultaneously with an easy-to-read, large, backlit LCD display. Measurement data is printed on site with minimum and maximum values. It can Monitor air pressure across key HVAC components and Promote good indoor air quality, which Ensure proper air flow balance and Maintain a comfortable environment. Features 1.Larger LCD display with backlight. 2.Relative time clock on MAX MIN and AVG provides a time reference for measurement. 3.Pressure, velocity or air fl ow measurement provides Zero Adjust. 4.Display pressure, Air velocity or air fl ow plus environment 5.Temperature simultaneously. 6.Easy to calculate the area of a rectangular or circular duct. 7.USB interface, USB to UART Bridge Controller.. 8.Low battery indication, and Auto Power Off mode (Sleep mode) increases. DT-8920-2.JPG DT-8920-3.JPG Accessories 9V battery, USB cable, software, pitot tube, AC adaptor, Gift box with carrying case. CEM Differential Pressure Meter DT-8920 ÁÒâ¹ÁÔàµÍÃì à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´»ÃÔÁÒµÃÅÁ