MQ-137 NH3 Gas Sensor Module for Ammonia, Carbon monoxide Detector Module LiPo Battery Voltage Tester P20 (SDA) OLED displays

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MQ-137 NH3 Gas Sensor Module for Ammonia, Carbon monoxide Detector Module LiPo Battery Voltage Tester P20 (SDA) OLED displaysMQ 137 NH3 Gas Sensor Module for Ammonia & Carbon Monoxide Detection Product Overview The MQ 137 Gas Sensor Module is a high sensitivity semiconductor gas sensor designed for detecting ammonia (NH3) and carbon monoxide (CO) in various applications. This reliable, cost effective solution is ideal for environmental monitoring, industrial safety systems, and DIY electronics projects. Key Features High Sensitivity Detects ammonia concentrations from 10