Product Reviews

Verdict: 4.2/5. The Kidde C3010 is a 10-year sealed battery CO alarm with no display — zero maintenance, no annual battery replacement. Functionally equivalent to COB10; compare prices at purchase. Step up to C3010D for a digital display.

Verdict: 4.4/5. The Kidde C3010D is a 10-year sealed battery CO alarm with digital display — functionally identical to the COBD10. Buy whichever is priced lower at purchase. Zero maintenance, no annual battery replacement.