à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´áÅкѹ·Ö¡ Thermometer > 800021 RH/Temperature SD Card Datalogger Records data onto removable SD Cards Reads relative humidity (RH) and ambient temperature dew point and wet bulb, and functions as a type K or J thermometer. Records data onto standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The removable SD card is easy to transport and insert into a computer’s memory card slot or SD card adapter. Uploads preformatted data to Excel, without the need for additional software and cables. Additional SD cards are readily available in a variety of memory sizes. Can also manually record 99 readings for on-screen review or stream data directly to a computer using the optional software and cables. Each data set includes temperature, RH, time and date. Features min/max, auto power off, low battery indicator and hold function . This well made unit is extremely accurate with fast response times, and includes a fold-out tripod and large, easy-to-read backlit LCD. Comes ready to use in a soft carrying case complete with a detachable probe, 6 AA batteries, instruction manual and a 2GB SD card. Weight: 1lb. (489g). Dim: 7” x 2 ¾” x 2” (177 x 68 x 45 mm). ` à¤Ã×èͧÁ×ÍÇÔ·ÂÒÈÒʵÃì ÍØ»¡Ã³ìÇÔ·ÂÒÈÒʵÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì à¤Ã×èͧÁ×ÍÇÑ´ à¤Ã×èͧÇÑ´áÅкѹ·Ö¡ Thermometer > 800021 RH/Temperature SD Card Datalogger