MQ-137 NH3 Gas Sensor Module for Ammonia, Carbon monoxide Detector Module Raspberry Pi4 2-4-8GB Model 4B Ultimate Kit- Case Module Type Soil Moisture /

Module Type Soil Moisture / Hygrometer Sensor Module Operating Voltage 3

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Self-Locking Note: 4-start lead screws with 8mm lead are generally NOT self-locking

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MQ-137 NH3 Gas Sensor Module for Ammonia, Carbon monoxide Detector Module Raspberry Pi4 2-4-8GB Model 4B Ultimate Kit- Case Module Type Soil Moisture /MQ 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