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  • Kidde KN-COSM-IB-Smoke & Carbon Monoxide Alarm Detects Flaming Fires & CO Hazard Voice Message Warning 120V Wire-in with Battery

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Buy from Amazon $39.00$12.99 $30.00 $20.00 $10.00 Sep Nov Jan Mar May Jul Sep Nov Jan Mar May 2015 2016 $38.89, Nov 27 - Dec 8$29.49, Nov 16 - Dec 17$24.99, Jul 19 - Aug 5$38.89, Nov 27 - Dec 8$29.49, Nov 16 - Dec 17$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$29.49, Nov 16 - Dec 17$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$25.49, Dec 20 - Dec 25$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$24.95, Dec 28 - Jan 4$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$29.95, Jan 5 8:11 pm$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$33.95, Jan 8 - Jan 23$14.99, Dec 6 - Jan 10$39.00, Dec 11 - Feb 3$33.95, Jan 8 - Jan 23$39.00, Dec 11 - Feb 3$32.99, Jan 24 - Feb 7$39.00, Dec 11 - Feb 3$32.25, Feb 8 - Feb 12$37.99, Feb 10 - Feb 11$32.25, Feb 8 - Feb 12$37.99, Feb 10 - Feb 11$32.00, Feb 13 - Feb 19$39.00, Feb 17 - Feb 25$32.00, Feb 13 - Feb 19$39.00, Feb 17 - Feb 25$29.99, Feb 20 - Mar 17$37.99, Mar 4 - Mar 10$29.99, Feb 20 - Mar 17$39.00, Mar 18 - Apr 6$31.69, Mar 18 - Apr 9$38.89, Apr 9 4:33 am$31.69, Mar 18 - Apr 9$31.55, Jul 20 - Jul 26$32.99, Jul 25 - Jul 27$31.55, Jul 20 - Jul 26$32.99, Jul 25 - Jul 27$26.99, Jul 27 6:15 am$32.99, Jul 25 - Jul 27$30.99, Jul 29 12:58 am$32.99, Jul 25 - Jul 27$30.45, Jul 30 12:14 am$30.99, Jul 31 - Aug 5$29.99, Jul 31 - Aug 5$38.75, Aug 6 1:27 pm$14.99, Aug 6 - Aug 8$30.99, Aug 7 - Aug 8$14.99, Aug 6 - Aug 8$31.50, Aug 9 - Aug 10$12.99, Aug 9 - Aug 10$30.95, Aug 11 11:21 am$14.99, Aug 11 - Aug 12$31.50, Aug 12 - Aug 16$29.99, Aug 13 8:25 am$38.75, Aug 17 - Aug 20$29.99, Aug 13 8:25 am$32.99, Aug 21 - Aug 22$29.99, Aug 13 8:25 am$32.99, Aug 21 - Aug 22$18.50, Aug 22 - Aug 23$38.75, Aug 23 - Aug 24$19.99, Aug 24 - Sep 6$33.26, Aug 25 8:51 pm$19.99, Aug 24 - Sep 6$26.00, Aug 28 2:52 am$19.99, Aug 24 - Sep 6$24.99, Aug 29 - Aug 30$19.99, Aug 24 - Sep 6$24.54, Aug 31 1:55 pm$19.99, Aug 24 - Sep 6$24.42, Sep 1 5:54 pm$19.99, Aug 24 - Sep 6$24.54, Sep 2 - Sep 5$19.99, Aug 24 - Sep 6$33.26, Sep 6 - Sep 8$19.99, Aug 24 - Sep 6$33.25, Sep 10 3:06 am$19.99, Aug 24 - Sep 6$32.00, Sep 11 - Sep 14$19.99, Aug 24 - Sep 6$31.00, Sep 16 4:41 pm$19.99, Aug 24 - Sep 6$29.00, Sep 17 - Sep 20$19.99, Aug 24 - Sep 6$27.97, Sep 21 - Sep 22$19.99, Aug 24 - Sep 6$27.00, Sep 23 1:04 am$19.00, Sep 23 - Sep 25$23.95, Sep 25 7:39 am$19.00, Sep 23 - Sep 25$26.50, Sep 27 - Sep 28$14.96, Sep 26 11:20 am$33.26, Sep 28 - Sep 29$14.96, Sep 26 11:20 am$27.99, Sep 30 12:28 pm$14.96, Sep 26 11:20 am$26.99, Oct 1 - Oct 2$14.96, Sep 26 11:20 am$33.25, Oct 3 - Oct 4$14.96, Sep 26 11:20 am$33.00, Oct 5 - Oct 6$14.96, Sep 26 11:20 am$38.00, Oct 7 - Oct 10$32.00, Oct 7 - Oct 8$38.75, Oct 8 - Oct 10$38.00, Oct 7 - Oct 10$32.50, Oct 11 - Oct 14$22.00, Oct 11 - Oct 17$30.00, Oct 15 - Oct 19$22.00, Oct 11 - Oct 17$38.00, Oct 18 - Oct 29$30.00, Oct 15 - Oct 19$38.00, Oct 18 - Oct 29$33.26, Oct 19 - Oct 20$38.00, Oct 18 - Oct 29$32.00, Oct 23 - Oct 24$38.00, Oct 18 - Oct 29$30.00, Oct 25 - Oct 30$38.00, Oct 18 - Oct 29$28.00, Nov 2 2:51 pm$38.00, Oct 18 - Oct 29$28.50, Nov 4 - Nov 7$38.00, Oct 18 - Oct 29$27.50, Nov 9 - Nov 11$38.00, Oct 18 - Oct 29$29.50, Nov 12 10:33 am$38.00, Oct 18 - Oct 29$28.50, Nov 13 - Nov 21$35.00, Nov 21 - Dec 14$30.50, Nov 21 - Nov 22$35.00, Nov 21 - Dec 14$29.50, Nov 23 - Nov 28$35.00, Nov 21 - Dec 14$28.50, Nov 29 - Nov 30$35.00, Nov 21 - Dec 14$28.00, Nov 30 2:45 pm$35.00, Nov 21 - Dec 14$27.75, Dec 1 - Dec 2$35.00, Nov 21 - Dec 14$28.00, Dec 7 12:53 am$35.00, Nov 21 - Dec 14$27.00, Dec 8 - Dec 9$35.00, Nov 21 - Dec 14$30.00, Dec 9 - Dec 10$35.00, Nov 21 - Dec 14$29.75, Dec 11 - Dec 14$29.00, Dec 15 - Dec 25$28.50, Dec 15 7:24 am$29.00, Dec 15 - Dec 25$28.00, Dec 16 9:15 am$30.00, Dec 18 2:29 pm$29.00, Dec 15 - Dec 25$29.00, Dec 26 - Feb 8$28.75, Dec 31 - Jan 2$29.00, Dec 26 - Feb 8$28.49, Jan 12 8:28 am$29.00, Dec 26 - Feb 8$27.49, Jan 14 12:49 am$29.00, Dec 26 - Feb 8$26.09, Jan 15 9:06 am$29.00, Dec 26 - Feb 8$24.09, Jan 16 - Jan 18$29.00, Dec 26 - Feb 8$20.00, Jan 19 2:27 am$29.00, Dec 26 - Feb 8$27.89, Jan 20 9:35 pm$31.50, Jan 22 4:25 pm$29.00, Dec 26 - Feb 8$29.00, Dec 26 - Feb 8$28.98, Jan 24 12:48 am$30.50, Jan 25 - Jan 26$29.00, Dec 26 - Feb 8$29.00, Dec 26 - Feb 8$26.49, Jan 26 - Jan 27$29.00, Dec 26 - Feb 8$26.45, Jan 30 3:04 pm$29.00, Dec 26 - Feb 8$24.50, Feb 1 - Feb 3$29.99, Feb 4 - Feb 6$29.00, Dec 26 - Feb 8$29.00, Dec 26 - Feb 8$26.50, Feb 7 - Feb 8$29.99, Feb 9 - Feb 16$29.99, Feb 8 - Feb 13$29.99, Feb 9 - Feb 16$29.85, Feb 14 - Feb 15$29.99, Feb 9 - Feb 16$29.75, Feb 16 - Feb 20$35.00, Feb 17 - Mar 15$29.75, Feb 21 - Feb 22$35.00, Feb 17 - Mar 15$32.48, Feb 22 8:57 pm$35.00, Feb 17 - Mar 15$30.75, Feb 23 - Feb 27$35.00, Feb 17 - Mar 15$30.55, Feb 28 - Mar 1$35.00, Feb 17 - Mar 15$29.50, Mar 2 - Mar 3$35.00, Feb 17 - Mar 15$29.25, Mar 4 9:12 am$35.00, Feb 17 - Mar 15$24.99, Mar 6 2:02 pm$35.00, Feb 17 - Mar 15$23.99, Mar 7 - Mar 12$35.00, Feb 17 - Mar 15$24.00, Mar 12 - Mar 16$35.00, Feb 17 - Mar 15$23.99, Mar 17 - Apr 2$35.00, Feb 17 - Mar 15$19.95, Apr 3 - Apr 4$35.00, Feb 17 - Mar 15$19.99, Apr 5 - Apr 6$35.00, Feb 17 - Mar 15$22.74, Apr 8 2:06 pm$35.00, Feb 17 - Mar 15$22.35, Apr 10 1:05 am$35.00, Feb 17 - Mar 15$21.40, Apr 11 - Apr 15$35.00, Feb 17 - Mar 15$23.40, Apr 16 - Apr 21$34.99, Apr 23 - Apr 25$28.75, Apr 22 - Apr 23$34.99, Apr 26 - Apr 28$29.95, Apr 26 - Apr 27$34.99, Apr 26 - Apr 28$29.90, Apr 27 - Apr 30$29.90, Apr 27 - Apr 30$20.99, Apr 29 - May 5$26.00, May 1 - May 12$20.99, Apr 29 - May 5$24.85, May 14 10:20 am$20.99, Apr 29 - May 5$20.99, Apr 29 - May 5$20.85, May 16 6:02 am$20.99, Apr 29 - May 5$18.79, May 18 - May 19$25.50, May 21 - May 22$20.99, Apr 29 - May 5$23.50, May 25 1:05 am$20.99, Apr 29 - May 5$23.15, May 26 - May 27$20.99, Apr 29 - May 5$23.00, May 28 - May 29$20.99, Apr 29 - May 5$25.50, May 30 - Jun 1$20.99, Apr 29 - May 5$25.85, Jun 2 - Jun 4$20.99, Apr 29 - May 5$25.51, Jun 5 - Jun 7$20.99, Apr 29 - May 5$25.49, Jun 8 8:53 am$20.99, Apr 29 - May 5$26.00, Jun 9 - Jun 19$20.99, Apr 29 - May 5$29.95, Jun 20 - Jun 22$20.99, Apr 29 - May 5$25.00, Jun 23 5:01 pm$20.99, Apr 29 - May 5$27.95, Jun 24 - Jun 29$20.99, Apr 29 - May 5$26.49, Jun 30 - Jul 2$20.99, Apr 29 - May 5$26.39, Jul 3 - Jul 9$20.99, Apr 29 - May 5$26.49, Jul 10 - Jul 19$20.99, Apr 29 - May 5$26.49, Jul 10 - Jul 19$24.99, Jul 19 - Aug 5$24.99, Jul 19 - Aug 5$14.02, Jul 20 - Jul 21$26.49, Jul 22 - Jul 27$24.99, Jul 19 - Aug 5$26.00, Jul 29 - Aug 5$24.99, Jul 19 - Aug 5$24.99, Jul 19 - Aug 5$24.53, Aug 6 - Aug 7$26.00, Aug 8 - Aug 10$24.99, Jul 19 - Aug 5$26.49, Aug 11 - Aug 18$24.99, Jul 19 - Aug 5$36.99, Aug 19 - Aug 24$24.99, Jul 19 - Aug 5$33.25, Aug 25 6:40 am$24.99, Jul 19 - Aug 5$36.99, Aug 26 - Aug 31$24.99, Jul 19 - Aug 5$37.35, Sep 1 5:29 am$24.99, Jul 19 - Aug 5$24.99, Jul 19 - Aug 5$20.00, Sep 2 - Sep 4$37.35, Sep 5 - Sep 8$24.99, Jul 19 - Aug 5$33.72, Sep 9 - Sep 11$24.99, Jul 19 - Aug 5$37.35, Sep 12 11:23 am$24.99, Jul 19 - Aug 5$25.00, Sep 13 - Sep 15$24.99, Jul 19 - Aug 5$29.49, Sep 16 - Oct 9$24.99, Jul 19 - Aug 5$28.87, Oct 10 2:56 pm$24.99, Jul 19 - Aug 5$29.49, Nov 4 - Nov 8$24.99, Jul 19 - Aug 5$24.99, Jul 19 - Aug 5$24.74, Nov 9 - Nov 15$29.49, Nov 16 - Dec 17$24.99, Jul 19 - Aug 5 89528,397 31,250 25,000 18,750 12,500 6,250 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr Jun 2015 2016

Price Details

New

Latest $38.89 2 days ago
Highest $39.00 Mar 18, '16
Lowest $37.99 Mar 4, '16
Average $38.71 (30d avg)
$38.76 (90d avg)
$38.83 (Lifetime average)
Added Jul 20, 2014

3rd Party New

Latest $31.69 2 days ago
Highest $38.75 Oct 8, '14
Lowest $14.02 Jul 20, '15
Average $31.20 (30d avg)
$31.81 (90d avg)
$30.13 (180d avg)
$28.71 (365d avg)
$28.77 (Lifetime average)
Added Jul 20, 2014

3rd Party Used

Last Seen $14.99 Jan 10, '16
Highest $38.00 Oct 18, '14
Lowest $12.99 Aug 9, '14
Average $14.99 (90d avg)
$14.99 (180d avg)
$22.65 (365d avg)
$26.47 (Lifetime average)
Added Jul 20, 2014

Sales Rank

30 day average: 13,175
90 day average: 10,807

Product Description

AC voice combination carbon monoxide & smoke alarm. Brand: Kidde . Part No.: KN-COSM-IB. Voltage: 120 . Amperage: 25 mA . Battery backup: yes . Battery type: 9 volt alkaline (included) . Depth: 1.7 in. Diameter: 5.75 in.

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