à¤Ã×èͧÁ×ÍÇÔ·ÂÒÈÒʵÃì ÍØ»¡Ã³ìÇÔ·ÂÒÈÒʵÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à¤Ã×èͧÇÑ´áÅкѹ·Ö¡ Thermometer >Precision Psychrometer Thermometer à·ÍÃìâÁÁÔàµÍÃì RH390 ¤Ø³ÅѡɳТͧ à·ÍÃìâÁÁÔàµÍÃì thermometer Precision Psychrometer Thermometer à·ÍÃìâÁÁÔàµÍÃì RH390 Precision Psychrometer Highest 2% RH accuracy Fast response time (<30 seconds) Dual backlit display Simultaneous display of: Humidity/Temperature Humidity/Dew Point Humidity/Wet Bulb Data Hold and Min/Max functions Highest 2% RH Accuracy Precision Psychrometer Fast response time (<30 seconds) Dual backlit display Simultaneous display of: Humidity/Temperature Humidity/Dew Point Humidity/Wet Bulb Data Hold and Min/Max functions Slim design with rubberized sides for better grip and one handed operation Auto power off with disable and low battery indicator Complete with carrying case and 9V battery Specifications Humidity 0 to 100% RH Temperature -4 to 140°F (-20 to 60°C) Basic Accuracy ± 2% RH, ± 3°F/2°C Max. Resolution 0.1% RH, 0.1°F/°C Dewpoint -22 to 212°F (30 to 100°C) Wet Bulb 32 to 176°F (0 to 80°C) Dimensions 7.81x1.7x1.3" (200x45x33mm) Weight 7oz (200g) à¤Ã×èͧÁ×ÍÇÔ·ÂÒÈÒʵÃì ÍØ»¡Ã³ìÇÔ·ÂÒÈÒʵÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à¤Ã×èͧÇÑ´áÅкѹ·Ö¡ Thermometer >Precision Psychrometer Thermometer à·ÍÃìâÁÁÔàµÍÃì RH390