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STEM Science, STEM Science
Compatible with LEGO Technic mechanical group building blocks planetary differential model without motor battery box educational toys
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$3.50
| Weight | 0.1 kg |
|---|
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DIY Automatic Water Dispenser School Experiment Manual Model Science Education Toy SNP68
STEM ScienceDIY Automatic Water Dispenser School Experiment Manual Model Science Education Toy SNP68
Working principle:
When the water cup touches the micro switch, the circuit is switched on, and the pump works
When the water cup leaves the micro switch, the circuit is disconnected and the pump stops workingSKU: SNP68
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