à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ ¾ÃéÍÁ ÍÔ¹¿Òàô à·ÍÃìâÁÁÔàµÍÃì DT-8894 CFM/CMM Thermo-Anemometer with built-in non-contact IR thermometer measure remote surface temperature to 932℉(500℃) with 30:1 distance to spot size and laser pointer. CMM/CFM Thermo-Anemometer withIR Thermometer DT-8894 -- àª×èÍÁµèͤÍÁ¾ÔÇàµÍÃì ºÑ¹·Ö¡¢éÍÁÁÙÅä´é Features Simultaneous display of Air Flow or Air Velocity plus Ambient Temperature Easy to set Area dimensions (cm2) are stored in the meter's internal memory for the next power on Resolution of 0.01m/sec 20 point average for Air Flow Super large (9999 count) LCD Backlit Display 3% velocity accuracy via low friction 2.83"D (72mm) ball bearing vane wheel on 3.9ft (120cm) cable Complete with vane sensor with 3.9ft (120cm) cable, 9V battery, and protective rubber holster CMM/CFM Thermo-Anemometer withIR Thermometer DT-8894 Specifications Air Velocity Range Accuracy 8893 8894 m/s(meter per second) 0.40~30.00 ±3% ±0.20m/s * * ft/min(feet per minute) 80~5900 ±3% ±40ft/min * * km/h(kilometers per hour) 1.4~108.0 ±3% ±0.8km/h * * MPH(miles per hour) 0.9~67.0 ±3% ±0.4MPH * * Knots(nautical miles per hour) 0.8~58.0 ±3% ±0.4knots * * Air Temperature 14-140oF(-10-60oC) ±4.0oF(2.0oC) * * InfraRed Temperature -58 to -4oF(-50 to -20oC) ±9.0oF(5.0oC) * -4 to 932oF(-20 to 500°C) ±2% reading * Air Flow Range Area CFM 0-999900 0-999.9 ft2 * * CMM 0-999900 0-999.9 m2 * * DT-8894 à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´ÅÁ