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
Force Board Kit, Compact & Low Maintenance. The Back Board Is Hard-Wearing With A Printed Grid And Is Bench-Standing. Detachable Feet For Easy Storage Ball, Provides The Teacher With A Simple Solution To Demonstrate The Principles Of The Parallelogram And Polygon Of Forces.