- WAVES & SOUNDS
Digital speed sensor
Free fall study.
Little case with 2 infra-red cells for detection
Digital LCD display
3 speed units: km/h, m/s, and cm/s
2 operating modes:
- Speed measure during a moving body passing
- Time between two passing with cumulative time
Power supply: 2 batteries AAA
Weight: 300 g
- Senior high school.
- Easy to use.
- Useful for a lot of experiments.