You can use this CO-DETECTOR as your personal and portable CO detection device. With the adhesive back, stick it on the panel or dash for a semi-permanent installation, or wear it on an ID badge or on a lanyard. Unopened CO-Detectors have a shelf life of 3 years, indicated by the expiration date on the package. Once removed from the packaging, the CO-Detector will last for 12 months.
Sold in packs of 2. Shelf life of 3 years if unopened.