Small Student Anemometer Meters_Electrical 5-capacitor condenser box features capacitors

5-capacitor condenser box features capacitors from 1 to 4

and herbivore feeding adaptations for teaching

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

625 inches in diameter

Youth-proportioned half-size torso with 9 removable parts including brain

Small Student Anemometer Meters_Electrical 5-capacitor condenser box features capacitorsCorrosion resistant and sized for hand held use, this small anemometer measures wind speed during earth science fieldwork and classroom weather investigations.