Small Student Anemometer Meters_Electrical 237kg hooked masses for measuring

237kg hooked masses for measuring spring extension under load and calculating spring constants

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

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

25 inch ceramic bar pair simplify pole identification

625 inches in diameter

Small Student Anemometer Meters_Electrical 237kg hooked masses for measuringCorrosion resistant and sized for hand held use, this small anemometer measures wind speed during earth science fieldwork and classroom weather investigations.