Mini Digital Thermo-Anemometer with Built-in Rotary Vane *****           This thermo-anemometer measureair speed and air temperature and simultaneously display reading. Compact, light weight and has wide measurement range of 0~30m/s wind speed with accuracy of ±5% and -10~45°C (-14~113°F) temperature with accuracy of ±2°C (±3.6°F). It displays 7 parameters and provides current, maximum and average wind speed measurement plus wind chill and Beaufort wind scale bar graph with readings correspond to the digital wind speed display. With high precision micro connectors and bearings, this device is excellent in measuring micro sources where other anemometers can't go to find out aging or slowing down, such as the air speed and temperature of fans in business computer servers and home CPU computer fans or air conditioning units and ducts, and even airflow over the roof or around walls or windows where there are concentrated spots of wind, and even vacuum cleaners! Larger anemometers can't usually do spot measurements accurately. It can also detect deterioration in small ventilation equipment over time in vacuum cleaners, CPU fans, etc. This palm-size device is also ideal for weather enthusiasts, lovers of kite flying, kite-surfing, wind-surfing, hang gliding, paragliding and sailing. Special Features Do micro spot measurements Mini and light weight Simultaneous measure and display wind speed & temperature With -10~45°C (-14~113°F) temperature range With 0~30m/s ( 0~90km/h if converted to kilometers per hour) fast Air Speed measure range Multiple SI units: m/s, km/h, fpm, mph, or knots Wind speed displays in Beaufort windscale bar graph as well Wind speed mode display options: current wind speed maximum wind speed since power-on average wind speed since power-on Displays Wind chil in selected temperature unit Selectable °F & °C Built-in rotating vane sensor Backlight with auto-off Weather resistant housing (but not submersible) Ultralight impeller is mounted in jewel (sapphire) bearing for precision, wide range of speeds and low start up speed Guaranteed quick response & accurate readings, no guessing errors Auto and manual power-off Low battery warning Detachable neck lanyard and battery are included Powered by 1 CR2032 (3V) lithium battery (included and installed) Tested according to European international guidelines and standards (CE marking) Passed ISO9001 Quality Management System With UKAS approval Specifications Measurement units & parameters *****Air Speed/Velocity: m/s, km/h, ft/min, knots, mph *****Air Temperature: °C & °F Special Functions: Wind Speed/Velocity: Current (Cu); Maximum (MAX) and Average (AVG) Backlight VELOCITY Range Resolution Threshold Accuracy m/s (meters per sec) 0 - 30 0.1 0.1 ± 5% km/h (kilometers per sec) 0 - 90 0.3 0.3 ft/min (feet per minute) 0 - 5860 19 39 mph (mile per hour) 0 - 65 0.2 0.2 Knots (nautical MPH) 0 - 55 0.2 0.1 TEMPERATURE Range Resolution Accuracy  Celsius -10 - 45°C 0.2°C ±2°C  Fahrenheit -14 - 113°F 0.36°F ±3.6°F Sapphire ball bearing NTC Thermometer Operating Environment Temperature: -10~45°C (-14~113°F) Humidity: less than or equal to 90%RH Storage Temperature: -40~60°C , -40~140°F About 3mA current consumption Power Supply: 1 x CR2032 3V Battery Size: 105 x 40 x 15mm Weight: 52g (including battery and lanyard) Standard Set Includes: 1 x 3V CR2032 Button Battery (FREE) 1 x Neck Strap/Lanyard (FREE) Quick Start Guide     Copyright © 2008. All rights reserved. Discount Instrument *