US$ 79.00
securing a thermometer to any support rod at the angle needed for hands-free temperature monitoring during an experiment
Built for wing-spreading during insect mounting
with masses between 50 and 400g for 5N spring-scale suspension work
Ratchet-stopped nickel-plated brass 25 mm micrometer screw gauge reading to 0
75-inch full-class units
Reed Relay Demonstration Board Science at Home_General Science Supplies securing a thermometer to anyDemonstrates electromagnetic switching on a base with 4mm plug connections, where current through a coil closes a separate contact and shows how a small signal controls a larger circuit.
US$ 79.00
US$ 51.00
US$ 39.00
US$ 39.00
US$ 128.18
US$ 103.84