Red zone starts at 3 bar

Broken cover plastic (see pictures)

Has broken plastic on the side

W/ 08228264 and 08246645

Has deeply damaged casing

Scott Safety Protégé Gas Detector with Power and USB Module, need calibration Default:DefaultVariant Red zone starts at 3Used Scott Safety Protg portable gas detector with power and USB communication module. Has signs of use. Has stains. Has scratches. Refer to photos. The unit powers on and charges correctly. Basic zero calibration was attempted indoors and again outside in clean air, but the calibration failed each time. Gas detection, USB communication and alarm functions have not been fully tested. Sold as defective or for repair. Calibration status unknown.