1PCS MQ-138 MQ138 Formaldehyde HCHO Volatile Organic Compounds (VOC) Gas Sensor Module with Alarm Signal Light

Description

🌬️ Breathe smarter, live better — never miss a toxic trace!

The MQ-138 Formaldehyde HCHO VOC Gas Sensor Module by HUABAN is a compact, energy-efficient sensor designed for rapid detection of formaldehyde concentrations between 1-100ppm. With a response time under 1 second and robust operation across -10 to 50°C and high humidity, it delivers precise air quality monitoring for professional and home environments. Its small size and low power consumption make it an essential tool for proactive health-conscious users.