Air Detection Module Quality Sensor Multi‑Parameter Output VOC/CO2/CH2O Industrial Control Item Type: Air Detection Module Material: Synthesis cardboard Purpose: The VOC module is a low-power air quality sensor that detects VOC, eCO2, and HCHO gases. It can detect the environment in real time, and output data through a certain protocol format, which is easy e and has good stability. Working Voltage: DC3.3V Working Current: <40mA Working Environment: Working Temperature 0~70℃, Working Humidity: 15%~95%RH Communication Mode: Serial port TTL level output (active reading mode and passive reading mode can be set by instructions) Warm-Up Time: ≤5min Service Life: 3 Years Size: Approx. 15.20mm / 0.6in 2.54mm / 0.1in 2.36mm / 0.1in 17.80mm / 0.7in 1.5mm / 0.1in Measurement resolution Measuring range Measurement accuracy  CO2  1ppm  400~500ppm  ±100ppm  VOC  1ppb  0~1000ppb  ±75ppb  CH2O  1ppb  0~400ppb  ±30ppb