This formaldehyde (HCHO) sensor calibrator is designed for calibration and bump test of HCHO gas detectors or sensors. It can be used in the laboratory and is also convenient to be used in the field. This device consists of an HCHO gas carrier, an equilibrium gas chamber, an on-off valve, and an LCD display. It is reliable and easy to operate. ·

Main Features

The HCHO gas carrier exchanges (either desorbs or absorbs) the HCHO gas in the equilibrium gas chamber based on the ambient temperature. Under a given temperature, the concentration of the HCHO gas in the chamber is constant and shown on the LCD display. Not like a traditional gas detector or sensor calibration system, this device eliminates tubes, valves, regulators, and other mechanisms required for calibration. Therefore, it provides not only the conve nience of use but also better and trustable accuracy of the HCHO gas concentration.