General Industrial Instrument, General Scientific Instrument à¤Ã×èͧÁ×ÍÇÑ´ > DT-174B à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ áÅкѹ·Ö¡ÍسËÀÙÁÔ ¤ÇÒÁª×é¹ ¤ÇÒÁ´Ñ¹ÍÒ¡ÒÈ temperature Barometer datalogger DT-174B Temperature / Humidity & Air Pressure Datalogger Features: 1.Alarm setup and indication 2.Recording and low battery indication 3.Manual and automatic start mode 4.USB port for data traffic and power supply 5.Status indication via Red/Yellow LED and Green LED Specifications: Data Memory 10000 Sampling rate 1min to18 hours Data output USB Temperature Range -40 to 70℃/-40 to 158℉ Resolution 0.1℃/0.1℉ Accuracy 40 to 70℃/104 to 158℉ ±2℃/3.6℉ 0 to 40℃/ 32 to 104℉ ±1℃/1.8℉ -40 to 0℃/-40 to 32℉ ±2℃/3.6℉ Humidity Range 0 to 100%RH Resolution 0.1%RH Accuracy 0 to 20 and 80 to 100% ±5% 20 to 40 and 60 to 80% ±3.5% 40 to 60% ±3.5% Air Pressure Range 950-1050hPa Resolution 0.1hPa Accuracy ±0.25%FSO(25℃) Repeatability ±0.2%(Max±0.3%FSO) Linearity/Hysteresis ±0.24%FSO Temperature coefficient ±0.1%FSO General Industrial Instrument, General Scientific Instrument à¤Ã×èͧÁ×ÍÇÑ´ > DT-174B à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ áÅкѹ·Ö¡ÍسËÀÙÁÔ ¤ÇÒÁª×é¹ ¤ÇÒÁ´Ñ¹ÍÒ¡ÒÈ temperature Barometer datalogger