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MQ 2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module Electronics Kit (Computer Science) for Grade 7 Ekya School Using 1105 motors with 5S Using 1105 motors with 5S batteries provides slightly lower thrust but improved efficiency for longer flight durations High Insertion Life: Rated for 1000+ insertion removal cycles far superior to economy sockets making them perfect for test jigs Fire & Smoke Detection System: Create an early warning smoke detector that triggers alarms Multi Gas Detection: A single module detects hydrogen
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