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The archetype of outdoor digital wireless thermos
Easily mounts on a dowel pole
this kit presents ready-to-assemble switches and circuits (but no batteries - household 1
The projector casts the photos in large size over walls and ceiling of a darkened room
Hair Hygrometer, 70mm dial Classic Instrument and away you goHair Hygrometer, 70mm dial. A simple but effective monitor of relative humidity, this instrument uses a hair bundled device which expands and contracts according to water vapour present, and is a step more precise than standard hygrometers, accuracy + 5%.
US$ 18.92
US$ 17.96
US$ 19.99
