US$ 19.99
Two-vernier readout on a 127mm degree plate resolves to 1 arcminute
5-inch wheel at 5
Classroom overhead projector with 250 x 250mm transparency platform projects handwritten and printed materials onto a wall or screen for group instruction
Dual-range 0-5V and 0-15V moving-coil DC voltmeter at plus-or-minus 2
NeuLog Turbidity Logger Sensor Material_Acrylic Two-vernier readout on a 127mmCuvette based turbidity data logging sensor reading 0 to 200 NTU by measuring reflected light intensity, supporting water quality and environmental science investigations in classroom labs.