The LOT (2) Dewlora DD14 4-in-1 Gas & CO Detector is a reliable and efficient tool for detecting CO, C2H4, and CH4 gases. With the brand name Dewlora known for producing quality gas detectors, this model DD14 ensures accurate results in detecting various harmful gases in the air. The new in box feature guarantees that you are getting a fresh and dependable product ready to use straight out of the packaging. Ideal for business and industrial settings, this gas detector is a valuable tool for ensuring safety and quality control in the workspace.