Performance characteristics: ZE08-CH2O formaldehyde sensor module has high stability, good anti-interference ability, temperature compensation and good linear output. Application: 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 places. Product Description: ZE08-CH2O electrochemical formaldehyde sensor module is a universal and miniaturized module. Using electrochemical principle to detect CH2O in air has good selectivity and stability. Built-in temperature sensor for temperature compensation; It has digital output and analog voltage output at the same time, which is convenient to use. ZE08-CH2O formaldehyde sensor module is a universal gas module designed and manufactured by combining electrochemical detection technology with excellent circuit design. Sensor 1. High sensitivity, high resolution, low power consumption and long service life. 2. Provide UART, analog voltage signal, PWM waveform and other output modes. 3. High stability, good anti-interference ability, temperature compensation and good linear output. Product model ZE08-CH2O formaldehyde sensor module Detecting gaseous formaldehyde Interference gas alcohol, carbon monoxide and other gases Output data (0.4 - 2V standard voltage signal) UART output (3V level) Working voltage is 3.7V - 9V (with reverse voltage protection) Preheating time 3 minutes Response time 60 seconds Recovery time 60 seconds Range 0 - 5 ppm Resolution 0.01 ppm Working temperature 0 - 50 Working humidity 15% RH-90% RH (no condensation) Storage temperature 0 - 50 Service life of 2 years (in air) Color: Green Material: Metal Package Conten: 1 * sensor module 1 * wiring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.