Differential Model, permits the instructor and student to manually turn the handle and apply a load to the transparent wheels to demonstrate the differential mechanism, permits power from the engine to be transmitted to a pair of driving wheels.
Circuit Board 2, Mass: 0.44 kg, Optional power sources: up to 4 AA batteries, not included, DC power supply such as Extech Digital DC power supply, Power Amplifier, Maximum voltage: 10 V, Resettable fuse opens at 0.8 A, but 0.3 A or less is recommended
Go Wireless* Exercise Heart Rate, Recommended for College, High School, and Middle School Science, excellent hands-free option for continuously monitoring heart rate before, during, and after exercise or while a person is stationary
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