Ganong's Potometer with PTFE Key and Wooden Base Item Type_Scissors and sliding protractor — the

and sliding protractor — the parallel-numbered twin of PHVSLFIP

this thermistor mounts on a transparent base with 4mm color-coded sockets and a printed circuit diagram for sensor-circuit student work

each topped with a small handling knob and stored in a hardwood block for classroom balance coursework

5 inches) make north and south poles instantly identifiable during attraction

wooden barriers

Ganong's Potometer with PTFE Key and Wooden Base Item Type_Scissors and sliding protractor — thePTFE key stopcock resists chemical attack on this Ganong potometer, supporting plant transpiration measurement on a wooden base across repeated lab sessions.