Features 1、It is easy to use and includes a USB data cable, which can be connected to a PC via USB to store and analyze data. 2、Digital anemometer can measure wind speed, airflow and temperature range, highly sensitive and accurate measurement to provide rapid measurement for analyzing serious environmental conditions. 3、With wind speed, temperature, wind flowing, data retention, data recording: 600 groups, ℃/℉ selection, 5 units of measuring wind speed: m/s, km/h, ft/min, knots, and miles. 4、Use safe and secure, data retention support, automatic shutdown and date retention functions, data will not be lost. 5、Durable, using high quality ABS material, not easy to damage, long service life, can be used for a long time. Specification Item Type: Digital Anemometer Material: ABS Model: 8907 Battery: 1.5V 4xAAA (not included) Uses: Flying kites, aviation planes, drones, sailing, fishing, hiking, shooting, etc. Basic parameters: 1. Wind speed measurement range: Unit Wind Speed Range Resolution Lowest Starting Point Accuracy m/s 0.0~45.0 0.01 0.3 ±3%±0.1 Ft/min 0.0~8800 0.01/0.1/1 60 ±3%±20 Knots 0.0~88.0 0.01 0.6 ±3%±0.2 Km/h 0.0~140.0 0.01 1 ±3%±0.4 Mph 0.0~100 0.01 0.7 ±3%±0.2 2. Air volume measurement range: CFM：0-999900ft^3/min CMM：0-999900m^3/min Unit RANGE RESOLUTION AREA CFM(FT^3/MIN) 0-999900 0.001-100 0.001-9999ft^2 CMM(M^3/MIN) 0-999900 0.001-100 0.001-9999m^2 3. Unit conversion: m/s Ft/min Knots Km/h Mph 1m/s 1 196.87 1.944 3.60 2.24 1ft/min 0.00508 1 0.00987 0.01829 0.01138 1knots 0.5144 101.27 1 1.8519 1.1523 1km/h 0.2778 54.69 0.54 1 0.6222 1mph 0.4464 87.89 0.8679 1.6071 1 4. Wind temperature: (1) Temperature measurement range Unit Gear Resolution Accuracy ℃ 0~45 0.1 ±1.0℃ ℉ 32~113 0.18 ±1.8℉ (2) Humidity measurement range Unit Minimum/Maximum Resolution Accuracy Test conditions %RH 10~90 0.1 ±5% 90%RH non-condensing 5. Working current: Unit DESCRIPTION Minimum/Maximum TYP Test conditions mA Working current 1 15~20 18 Backlight is off mA Working current 2 20~25 23 Backlight is on V Low battery indicator 3.5~4.5 4 uA shutdown current 0~8 5 6. Working environment: Temperature 0~50℃ (32~122℉) Humidity 40~80%RH 7. Storage environment: Temperature -40~60℃ (-40~140℉) Humidity ≤80%RH Package List 1 x Anemometer(Battery Not Included) 1 x USB Data Cable 1 x Wind Speed Sensor 1 x Manual 1 x Tool Box