Performance characteristics: ZE08-CH2O formaldehyde sensor module has high stability, good anti-interference ability, temperature compensation, and good linear output. Application: The formaldehyde sensor module is widely used in portable instruments, air quality monitoring equipment, air purifiers, fresh air ventilation systems, air conditioners, smart home equipment, and other applications. The ZE08-CH2O electrochemical formaldehyde sensor module is a universal and miniaturized module. It uses electrochemical principles to detect CH2O in the air and offers good selectivity and stability. It features a built-in temperature sensor for temperature compensation and provides both digital and analog voltage outputs for easy integration. The ZE08-CH2O formaldehyde sensor module is a general-purpose gas detection module designed with electrochemical sensing technology and optimized circuit design. Sensor Features: 1. High sensitivity, high resolution, low power consumption, and long service life. 2. Supports UART, analog voltage signal, and PWM waveform output modes. 3. High stability, strong anti-interference capability, temperature compensation, and excellent linear output. Product Model: ZE08-CH2O formaldehyde sensor module Detected Gas: Formaldehyde Interference Gases: Alcohol, carbon monoxide, and other gases Output Data: 0.4 - 2V standard voltage signal UART Output: 3V level Operating Voltage: 3.7V - 9V (with reverse voltage protection) Warm-up Time: 3 minutes Response Time: 60 seconds Recovery Time: 60 seconds Detection Range: 0 - 5 ppm Resolution: 0.01 ppm Operating Temperature: 0 - 50C Operating Humidity: 15% RH - 90% RH (non-condensing) Storage Temperature: 0 - 50C Service Life: 2 years (in ambient air) Color: Green Material: Metal Package Includes: 1 x Sensor Module 1 x Wiring Harness Only the above items are included.