EM 890 is an instrument for measuring environmental conditions. The HVAC meter gives you an accurate measurement very quickly. Due to the small dimensions and the low weight, this HVAC meter is an easy-to-use information system on the weather condition. It is possible to switch between the measuring functions with just one push of a button. Thus, this HVAC meter is ideal for technicians, sailors, farmers and many other people who are dependent on the weather or whose activities are significantly influenced by the weather.
With just one gauge, you can read wind speed, temperature, wind chill (sensed temperature), dew point, relative humidity, heat index, barometric pressure, and height above sea level. The anemometer offers you the functions of the individual measured value, minimum value, maximum value measurement.
Multi Meter EM 890
Measuring function Measuring range Resolution Accuracy Wind speed 80 ... 3937 ft/min 1 ft/min ± 3% of measured value 0.4 ... 20 m/s 0.1 m/s 1.4 ... 72 km/h 0.1 km/h 0.9 ... 44.7 mph 0.1 mph 0.8 ... 38.8 Knots 0.1 Knots Air temperature Measuring range Resolution Accuracy 0 ... 50°C / 32 ... 122°F 0.1°C / 0.18°F ± 1.2°C / 2.16°F Humidity Measuring range Resolution Accuracy 10 ... 95% r.H. 0.1% r.H. <70% r.H.: ± 4% r.H. >70% r.H.: ± 4 of measured value +1.2% r.H. Barometric- Measuring range Resolution Accuracy air pressure 10 ... 999.9 hPa 0.1 hPa ± 1.5 hPa 1000 ... 1100 hPa 1 hPa ± 2 hPa UV A 290 ... 390 nm Measuring range Resolution Accuracy 0 .... 1999 µW/m² 0.1 µW/m² ±(4% of measured value + 2 digits) 2 ... 20 mW/m² 0.01 mW/m² External temperature Measuring range Resolution Accuracy (Pt1000 input) -10 ... 70 °C / 14 ...158°F 0.1°C / 0.18 ± 1.2°C / 2.16°F Volume flow Measuring range Resolution 0.024 ... 3600 cmm 0.001 cmm 0.01 cmm 0.1 cmm 1 cmm Measuring range Resolution Dew point -25.3 ... 49°C / 13.54 ... 120.2°F 0.1°C / 0.18°F Wet bulb temperature Measuring range Resolution -5.4 ... 49°C / 22.28 ... 120.2°F 0.1°C / 0.18°F Heat stress index Measuring range Resolution Accuracy 0 ... 100°C / 32 ... 212°F 0.1°C / 0.18°F ± 2°C / 3.6°F Windchill Measuring range Resolution Accuracy -9.4 ... 44.2°C / 15.8 ... 111.56°F 0.1°C / 0.18°F ± 2°C / 3.6°F Height above sea level Measuring range Resolution Accuracy -2000 ... 9000 m / -6561 ... 29527 ft 1 m / 3 ft 3" ± 15 m General technical data for the HVAC meter Display LC display 8 mm character height Measurement functions Wind speed / temperature Display parameters Humidity / temperature UV Air pressure Volume flow Dew point Wet bulb temperature Windchill Heat stress index Height above sea level External temperature over Pt1000 Power supply CR2032 3V batteries Current consumption ca. 5-mA Operating conditions 0 ... 50°C / 32 ... 122°F / max. 80% r.H. Dimensions 120 x 45 x 20 mm / 4.7 x 1.7 x 0.7" Weight ca. 160 g / < 1 lb