Anemometer Air Velocity Meter à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´ÅÁ CFM CMM Meter Flow Meter à¤Ã×èͧÇÑ´»ÃÔÁÒµÃÅÁ »ÃÔÁÒ³ÅÁ CFM/CMM > à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ 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 ÇÑ´ÍسËÀÙÁÔÅÁ ÊÙ§ÊØ´ 600C DT-8920 Pressure and Flow Meter //*** ÃÇÁ PITOT TUBE áÅéÇ Anemometers Air velocity Meters à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ ¤ÇÒÁàÃçÇÅÁ Anemo-Manometer DT-8920 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. Accessories : 9V battery, USB cable, software, pitot tube, AC adaptor, Gift box with carrying case. Specifications: Manometer Accuracy ±0.3%FSO (25°C) Repeatability ±0.2% (Max.±0.5% FSO) Linearity/Hysteresis ±0.29% FSO Pressure Range ±5000Pa Maximum Pressure 10psi Response Time 0.5 Seconds typical Over range Indicator OL Under range Indicator -OL Units Range Resolution PSI 0.7252 0.0001 mbar 50.00 0.01 inH2O 20.07 0.01 mmH2O 509.8 0.1 Pa 5000 1 Air Velocity Range Resolution Accuracy m/s(meter per second) 1-80.000 0.001 ±2.5% of reading at 10.00m/s ft/min(feet per minute) 200-15733 1 Accuracy is function of velocity and duct size km/h(kilometers per hour) 3.5-288.0 0.1 MPH(miles per hour) 2.25-178.66 0.01 Knots(nautical miles per hour) 2.0-154.6 0.1 Air Flow Range Resolution CFM 0-99.999ft3/min 0.0001 to 100 CMM 0-99.999m3/min 0.001 to 100 Temperature Range Resolution Accuracy °C 0 to 50.0°C 0.1 ±1.0°C °F 32.0 to 122.0°F 0.1 ±2.0°F