Formaldehyde gas sensor WH-N

HCHO

The WH-N formaldehyde gas sensor is based on the principle of micro fuel cells for detection. When formaldehyde gas is present in the environment, gas molecules quickly reach the core detection unit of the sensor through natural diffusion and concentration polarization, and undergo oxidation reaction at the positive electrode. Oxygen in the environment undergoes reduction reaction at the negative electrode of the sensor, forming a closed loop reaction. The generated current is proportional to the concentration of formaldehyde gas in the environment. By detecting the magnitude of the generated current, the formaldehyde gas content in the environment can be accurately quantified. The sensor pioneered the use of fuel cell solid electrolyte, which is safe, reliable, and has a long service life. Sensors have excellent anti-interference properties and are not affected by low concentration interfering gases in the environment. Sensors are passive components that do not require any external excitation during the reaction process, with zero power consumption. They are very suitable for portable instruments and places that require battery power. Features High Anti Interference Ability High Precision High Sensitivity Long Service Life Wide Linear Range Typical Applications Fresh Air System Detectors Air Purifiers Handheld Detector Air Conditioning