Thomas Traceable Micro Anemometer/Thermometer, -4 to 176 degree F

Unit measures air velocity in five user selectable values: meters per second, feet per second, miles per hour, kilometers per hour, and knots. It also displays: maximum airflow measured, temperature in degree F and degree C, and wind chill temperature in degree F and degree C. Measurements are lightning fast with reading updates 2 times per second. Easy to use rugged design: Simple one-button operation eliminates the need to refer to directions. Tough ABS plastic housing and water-resistant design keeps out moisture, dust, and dirt, assuring a long life in severe lab, harsh plant or outdoor environments. High contrast LCD digits are over 3/8" high and easy to read. Electro-luminescent backlight allows the display to be read in total darkness. Traceable to NIST: To assure accuracy an individually serial-numbered Traceable Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology). Rugged ABS plastic case is 1-3/4 length by 4" width by 5/8" thick inches; weight is 1 ounce. Supplied with a Traceable Certificate, lanyard, nylon carrying case, and long-life lithium battery. 0 to 30 m/s Air flow range. 0.1 m/s Air flow resolution. +/-5 percent full scale air flow accuracy. -4 to 176 degree F temperature range. 0.1 degree temperature resolution. +/-1 degree Temperature accuracy.