Precise and crystal clear...
The "Environmental" Meter, Extech's EN300 Hygro-Thermo-Anemometer-Light-Sound Meter. Measures Humidity, Temperature, Air Velocity, Light and Sound. 0.4 - 30m/s
Extech CO250 Portable Indoor Air Quality CO2 Meter. Measures Carbon Dioxide (CO2), Temperature, Humidity, Dew Point, and Wet Bulb
Extech HW30 HeatWatch™ humidity/temperature stopwatch. Digital UP/DOWN timer displays Temperature, Humidity, and Heat Index
Extech 445713 big digit indoor/outdoor hygro-thermometer. Simultaneous display of Temperature and Humidity
Center 317 Humidity Temperature Meter with Dew Point and Wet Bulb temperature measurements
Extech HT30 Heat Stress WBGT (Wet Bulb Globe Temperature) Meter. Considers the effects of temperature, humidity, and direct or radiant sunlight