MQ-2 Smoke Gas Sensor V1.3 Module for Arduino (Works with Official Arduino Boards)
Model I072616 Quantity 1 Color Black Material PCB Features Main chip: LM393; ZYMQ-2 gas sensor; Working voltage: 5V; With signal indicating; 2-way signal output (analog and TTL output) Application Used in gas leakage detecting equipments Other Fast response and high sensitivity; Stable and long life Packing List 1 x Gas sensor module