The PF-9940 Peak Air Flow Meter is an important part of any asthma management plan. quickly measuring respiratory capacity and assisting in early detection of asthma attacks. The Omron Peak Flow Meter features both adult and child meters to measure the air pushed out of your lungs. The PF-9940 Peak Air flow meter is hand held for easy use and weighs only 6 oz.Measurements with a Peak Flow Meter can help you and your doctor monitor your asthma. These measurements can be important and help your doctor prescribe medicines to keep your asthma in control. Color indicators are used for easy reference. Knowing your "best" Peak Flow Rate allows you to take better control of your asthma. The PF-9940 Peak Air Flow Meter can provide reassurance and make you feel more self-confident.

Operating Modes: Temperature; wind chill; relative humidity; heat index; dew point temperature. Operating Temperature: LCD readability is lost above 50oC (122oF) and below -15oC (5oF). Accuracy: Temperature and wind chill +/- 1.0oC; rh +/- 3%; dew point temp +/-2oC; heat index +/-3oC. Units: Degrees Centigrade (oC) or degrees Fahrenheit. Display Update: 1 second. Item Number: KE0853 The Kestrel 3000 is the ONLY hand-held instrument for measuring wind speed, temperature, wind chill, relative humidity, heat index and dew point temperature.Pocket-sized and easy-to-use Measuring modes and display units can be changed at any time. The large liquid crystal display is easy to read, even in low light The Kestrel 3000 measures. wind speed with a large-diameter precision ultralight impeller which turns on sapphire bearings.