Universal 4×4 16 Matrix Switch Keypad Keyboard MQ-137 NH3 Gas Sensor Module for Ammonia protecting diodes from overcurrent damage

Universal 4×4 16 Matrix Switch Keypad Keyboard MQ-137 NH3 Gas Sensor Module for Ammonia protecting diodes from overcurrent damage

EUR78.44 EUR100.44

4.8

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Description

Universal 4×4 16 Matrix Switch Keypad Keyboard MQ 137 NH3 Gas Sensor Module for Ammonia protecting diodes from overcurrent damage protecting diodes from overcurrent damage while achieving 3 5mA forward current 7 mm (ultra compact form factor) PCB Finish Gold ENIG Limited Edition collectible design Edition Limited Edition (numbered collectible run) Type Microcontroller Development Board Origin 100% Original Arduino Authentic Italian Design Warranty 7 day warranty on manufacturing defects Support Email & WhatsApp 24 7 Why Choose the Arduino Uno Mini Limited Edition Universal 4×4 16 Matrix Switch Keypad Keyboard

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