Barometer à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ºÃÃÂÒ¡ÒÈ > Anemometer à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ºÃÃÂÒ¡ÒÈ Air Velocity Meter à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ áÅÐÍسËÀÙÁÔ à¤Ã×èͧÇÑ´ÅÁ CFM/ CMM Meter Flow Meter 850022 Anemometer, Barometer, Humidity & Temperature 850022 RH ANEMOMETER BAROMETER PEN 850022 Measure multiple environmental parameters with a single self-contained pen-style anemometer. Ideal for field studies and HVAC. Measures wind speed in four units of measure, temperature in ºC & ºF, relative humidity, dew point and also measures barometric pressure in three units of measure. This pen anemometer will display two parameters simultaneously and indicate when batteries are low. Also features hold, min/max and auto power off. The Sper Scientific Relative Humidity - Anemometer - Barometer Pen comes ready to use with four AAA batteries and a soft carrying case with belt loop. Weight: 182g with batteries Dimension: 205 x 48mm Specifications Range Resolution Accuracy Airspeed ft/min: 80 ~ 5910 1 Airspeed m/s: 0.4 ~ 30 0.1 < 20 m/s ± 3% fs >20 m/s ± 4% fs Airspeed km/h: 1.4 ~ 108 Airspeed mph: 0.9 ~ 67 Airspeed knots: 0.8 ~ 58 Temperature ºC: 0 ~ 50º Temperature ºF: 32 ~ 122º Relative Humidity: 10 ~ 95% >70% RH ± (3% rdg. + 1% RH) Dew Point ºC: -26 ~ 48º 0.01 Sum of the Temp + RH accuracy of the measurement Dew Point ºF: -14 ~ 120º Barometric Pressure hPa: 10 ~ 999 1000 ~ 1100 0.1 1 ±1.5 ±2 mmHg: 7.5 ~ 825 0.1 ±1.2 inHg: 0.29 ~ 32 0.01 ±0.05 850022 Anemometer Barometer Flow Meter Humidity Sper Scientfic Temperature à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÍÒ¡ÒÈ à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´»ÃÔÁÒµÃÅÁ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ ¤ÇÒÁª×é¹ áºº¾¡¾Ò Ẻ㺾Ѵ