model:CPB3800 hydraulic dead weight tester 
|  | Model:CPB3500 Pneumatic dead weight tester
| 
|
Model:CPB5000 Pressure balance pneumatic
| 
| Model:CPB3800HP High pressure dead weight tester
| 
|
model:CPB5000HP pressure balance high-pressure version
|  | model:CPB5800 hydraulic pressure balance
|  |