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, and smart home equipment. 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 universal gas module designed and manufactured by combining electrochemical detection technology with advanced 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, good anti-interference capability, temperature compensation, and reliable 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 Measurement range: 0 - 5 ppm Resolution: ≤ 0.01 ppm Operating temperature: 0 - 50°C Operating humidity: 15% RH - 90% RH (non-condensing) Storage temperature: 0 - 50°C Service life: 2 years (in ambient air) Color: Green Material: Metal Package includes: 1 x Sensor module 1 x Wiring harness