Environment Meter is a broad term referring to a number of different instruments and meters. These instruments help test auding temperature, humidity, airflow, pressure, moisture, light, sound, etc. These are used for indoors as well as outdoors testing. Environmental meters are very important in all industrial ...The Klein Tools Auto Ranging Multimeter measures AC/DC voltage, resistance and continuity. It's easy-to-use functionality saves times. The meter's durability handles even the roughest of jobsite environments. The MM500 is the tough meter for your tough jobs.A data-logging environmental tester will often feature a data interface or output such as an RS-232 or USB port to allow the data collected to be transferred to aputer for analysis. Catalog. Environmental tester catalog. If you have any questions, please contact us at or +44 ( 0 ) 2380 987 03 0.Extech. EN510 is a convenient 10-in-1 Environmental Meter which measures Air Velocity, Air Flow, Air Temperature, Type K Temperature, Heat Index, Humidity, Wet Bulb, Dew Pointudes built-in low friction ball bearing mini vane wheel, a precision photo diode with cosine and…. Related Products: Anemometer.