Features 1、4.55mm high contrast LCD display with backlight and function indicator, the measurement results can be displayed on the screen intuitively and clearly. 2、The measurement range of wind speed is 0.3m/s - 45.0m/s, with high accuracy and sensitive response. 3、The wind speed is measured in m / s, knots, mph and other units, which is suitable for different occasions. 4、Support temperature measurement, the measurement range is - 30 ℃ - 60 ℃ / - 22℉ - 140℉, applicable to more customer needs. 5、This hand-held digital anemometer is small in size, compact in structure and convenient to carry with you. It is suitable for electric power, steel, petrochemical, energy-saving fishing, etc. Specification Condition: 100% Brand New Item Type: Anemometer Material: ABS Air speed range 0.3m/s - 45.0m/s Air speed accuracy ±（3% of reading﹢0.2） Temperature range -30℃-60℃/ -22℉-140℉ Temperature accuracy ±1.5℃(±2.7℉) Area set 0.001 -9999 ㎡（0.001- 9999ft²) Display 4 digits LCD display Resolution m/s:0.01, km/h:0.1, ft/min:1, knots:0.1 mph:0.1, cmm:0.001, cfm:0.001 Sampling time 1time/second Operation Temperature -10℃-60℃/14℉-140℉ Operating Humidity ≤90％RH（Non-condensation） Storage Temperature -10℃-60℃/14℉-140℉ Storage humidity <80%RH Air speed level indication level 1-12 by analog bar-graph, level 12 above by digits Measurement average average reading of the latest 30 records Maximum / Minimum Maximum / Minimum Reading freezing Hold Power Supply 1 x 9V Battery (006P, NEDA1604 or IEC6F22) (Battery Not Included) Auto power off Automatically power off after approx. 15 minutes of inactivity Package List 1 x Anemometer (Battery Not Included) 1 x Probe 1 x English Manual 1 x Box