Description item :
http://url.cmtcentre.com/?go_url=aHR0cDovL3Byb2R1Y3R6b25ldWsuYmxvZ3Nwb3QuY29tLzIwMTgvMDUva2lkZGUtMTBsbGRjby1jYXJib24tbW9ub3hpZGUtYWxhcm0uaHRtbA
Digital display that shows current CO levels (from 10ppm)
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10 year sealed battery
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10 year manufacturer's warranty
[- end Description -]