| BRAND | Ziehl |
| Product | NS20 / V223440 |
| Description | Control relay |
| Internal code | IMP4539491 |
| Weight | 0.1 |
| Technical specification | Adjustable sensitivity 5-250 kΩ Option whether relay attracts or falls if the highest electrode is moistened Response delay adjustable 0.1-10 s LED indicators for on and relay state. |
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