à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ 850027 Mini Environmental Quality Meter Description Monitor up to 12 environmental parameters with one tiny instrument Light weight, tiny size with simple, one-hand, operation. All units (except LUSP-82AC) read air speed in addition to the wide selection of environmental parameters listed below. Will sense airflow as low as 0.4 m/s with an accuracy of ±3% (4% >20m/s). Replaceable snap-in anemometer vane. All models feature min/max, hold, a backlight and come complete with a wrist strap, carry pouch, and button cell battery providing at least 40 hours of continuous use. Model 850027 accurately measures liquid and solid temperatures using the optional Pt 1000 penetration probe. Dimensions: 4¾" × 1¾" × ⅞" (120 × 45 × 22.25 mm) Specifications Unit Measure Range Resolution Accuracy Wind Speed: 80 ~ 3937 ft/min 0.4 ~ 20.0 m/s 1.4 ~ 72.0 km/h 1.4 ~ 72.0 km/h 0.9 ~ 44.7 mile/h 0.8 ~ 38.8 knots 1 ft/min 0.1 m/s 0.1 km/h 0.1 MPH 0.1 knots 0.1 °F/°C ≤ 20 m/s: ± 3% F.S. > 20 m/s: ± 4% F.S. Air Temp.: 32 ~ 122 °F 0 ~ 50 °C 0.1 °F 0.1 °C ± 2.5 °F ± 1.2 °C Air Volume: 0.024 ~ 36000 CMM 0.847 ~ 1271300 CFM 0.001/0.01/0.1/1 0.001/0.01/0.1/1 /10 (x10)/100 (x100) RH: 10 ~ 95% RH 0.1% RH < 70% RH: ± 4% RH ≥ 70% RH: ± (4% rdg +1.2% RH) Wind Chill: 15.0 ~ 112.0 °F -0.4 ~ 44.2 °C 0.1 °F 0.1 °C ± 3.6 °F ± 2.0 °C Heat Stress Index: 32 ~ 212 °F 0 ~ 100 °C 0.1 °F 0.1 °C ± 3.6 °F ± 2.0 °C Dew Point: -13.5 ~ 120.0 °F -25.3 ~ 49.0 °C 0.1 °F 0.1 °C Calculate from the humidity/ temp. value Wet Bulb: 22.2 ~ 120 °F -5.4 ~ 49.0 °C 0.1 °F 0.1 °C Calculate from the humidity/ temp. value PT 1000 ohm Probe (optional): 14.0 ~ 212.0 °F -10.0 ~ 100.0 °C 0.1 °F 0.1 °C ± 2.5 °F ± 1.2 °C Barometric Pressure 10.0 ~ 999.9 hPa 1000 ~ 1100 hPa 7.5 ~ 825.0 mmHg 0.29 ~ 32.84 inHg 0.1 hPa 1 hPa 0.1 mmHg 0.01 inHg ± 1.5 hPa ± 2 hPa ± 1.2 mmHg ± 0.05 inHg Altitude -6000 ~ 30000 ft -2000 ~ 90000 m 1 ft 1 m ± 50 ft ± 15 m Visible Light 0 ~ 2200 Lux 1800 ~ 20000 Lux 0 ~ 204.0 FC 170 ~ 1860 FC 1 Lux 10 Lux 0.1 FC 1 FC ± 5% rdg ± 8 dgt 850027 Anemometer SPER Scientific à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ à¤Ã×èͧÇÑ´»ÃÔÁÒµÃÅÁ à¤Ã×èͧÇÑ´ÍѵÃÒ¡ÒÃäËÅ