"WardsSci000478"

This combination unit indicates the inside and outside temperatures and the indoor humidity.

Large, black, rounded tektite, 1 1/2". Thailand.

1 pound of black sand packaged in a heat-sealed bag.

For Use With Solar Cell.

Multifunction Capability in One Affordable Instrument

Convenient 10-in-1 Environmental Meter measuring Air Velocity, Air Flow, Air Temperature, Type K Temperature, Heat Index, Humidity, Wet Bulb, Dew Point, Windchill, and Light Level.