à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´áʧ ÍسËÀÙÁÔáÅФÇÒÁª×é¹áºº (6 in 1) Sper Scientific 850069 Descriptions: 6 METERS IN ONE • Air Speed • Air Temperature • Humidity • Light • Sound • Thermocouple Temperature Combines an anemometer, hygrometer, thermometer, sound and light meter into a single hand-held unit. Also reads any type-K thermocouple probe. Results are displayed on a large dual LCD with low battery and out-of-range indications. Features touch-tone buttons, min/max, auto power off and hold functions. Comes ready to use in a soft carrying case with RS232 computer port, instructions, 6 AAA batteries, easel back, and a tripod screw. N.I.S.T. traceable certificate of calibration available. Dimensions: 10" × 2¾" × 1⅛" (255 × 75 × 35 mm) Weight: 12 oz (330 g) Specifications: Range Resolution Accuracy ºC Ambient 0 ~ 50 0.1 ±1.2ºC ºF Ambient 32 ~ 122 ±2.5ºF ºC Type K -100 ~ 1300 ±(1% + 1ºC) ºF Type K -148 ~ 2372 ±(1% + 2ºF) RH 10 ~ 95% < 70% RH ± 4% > 70% RH ± (4% rdg + 1.2% RH) Airspeed m/s 0.4 ~ 30.0 20 m/s ±3% fs 20 m/s ±4% fs Airspeed km/h 1.4 ~ 108.0 Airspeed mile/h 0.9 ~ 67.0 Airspeed knots 0.8 ~ 58.3 Airspeed ft/min 80 ~ 5910 1 Lux 0 ~ 2,000 1800 ~ 20,000 1 10 ±5% rdg + 8d Foot Candle 0 ~ 204.0 170 ~ 1860 0.1 1 dB 35 ~ 130 0.1 23 + 5ºC ± 1.5dB 6 in 1 850069 Air speed Anemometer Flow Meter Light meter Lux meter Sound Meter SPER Scientific Temperature ¤ÇÒÁª×é¹ à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à¤Ã×èͧÇÑ´àÊÕ§ à¤Ã×èͧÇÑ´áʧ