Nb2 Balance Spring

- Newton Spring Balance
- Plastic Body
- Top suspension ring
- Large, easily readable flat scales
- Zero adjuster
- Load hooks
A) 0 - 5n
B) 1 - 10N x 0.2N
C) 0 - 50N x 2N
Nb8 Bell - in Vacuum

- Bell jar
- Pump Plate
- Air outlet for a vacuum pump
- Two terminals for electric connections
- 6 - 8V dc electric bell