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NE555 + CD4017 Water Flowing Light LED Module DIY Kit MQ-135 Gas Sensor Module For NH3 Universal compatibility: Works with APM

4.4 SKU 19332610232

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NE555 + CD4017 Water Flowing Light LED Module DIY Kit MQ 135 Gas Sensor Module For NH3 Universal compatibility: Works with APM Universal compatibility: Works with APM 120 180g (lightweight aluminium construction) Surface Finish CNC machined

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