| Model series | Scienza-Add |
| Description | Gas-level column |
| Model | 389 |
| ID | 29189 |
| Height | 9 cm |
| Weight | 1.4 kg |
With 4 gas plug couplings, plug connections close automatically, height 90 mm (height without rotary knob), incl. 1 m connection hose.
Changes and errors reserved. Illustrations similar.