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Best selling products: Best
Logitech Harmony Bluetooth Home Smoke Alarms Detectors
Bestselling
Top Rated
1
Rank 1
Google Nest Protect Smoke and Carbon Monoxide Alarm 2nd Gen - S3000BWES
(406)
$79.99 New
$79.99 New
$25.76 Used
$25.76 Used
2
Rank 2
Google Nest Protect Carbon Monoxide Smoke Detector - S3003LWES
(206)
$16.00 New
$16.00 New
$14.54 Used
$14.54 Used
3
Rank 3
BRK First Alert 9120B Smoke Detector
(572)
$21.26 New
$21.26 New
$16.95 Used
$16.95 Used
4
Rank 4
Kidde i4618 Firex Hardwired Smoke Alarm
(4)
$25.00 New
$25.00 New
---- Used
No used products available
5
Rank 5
- Airthings 2951 Wave 2nd Gen Radon Detector
(6)
$37.99 New
$37.99 New
$35.00 Used
$35.00 Used
6
Rank 6
Kidde 21007581 Hardwired Smoke Alarm with Battery Backup
(222)
$28.99 New
$28.99 New
$23.99 Used
$23.99 Used
7
Rank 7
Kidde 21026056 Model i9040 Ionization Smoke Alarm
(186)
$14.49 New
$14.49 New
---- Used
No used products available
8
Rank 8
2025 SITERWELL Hardwired Combination Carbon Monoxide & Smoke Alarm Authentic
(1)
$48.99 New
$48.99 New
---- Used
No used products available
9
Rank 9
Kidde 30CUAR-V Smoke Carbon Monoxide Detector Alarm Hardwire & Battery
$35.99 New
$35.99 New
---- Used
No used products available
10
Rank 10
Digital Radon Detector Airthings 2350
(99)
$50.00 New
$50.00 New
$49.99 Used
$49.99 Used
11
Rank 11
Honeywell 5800SMOKEV Wireless Smoke Heat Detecto Factory / w Battery
(2)
$60.00 New
$60.00 New
$32.00 Used
$32.00 Used
12
Rank 12
Google Nest Temperature Sensor - White (T5000SF)
(85)
$19.49 New
$19.49 New
$16.99 Used
$16.99 Used
13
Rank 13
Kidde 21006377 Hardwired Combination Carbon Monoxide & Smoke Alarm
(181)
$89.84 New
$89.84 New
$32.00 Used
$32.00 Used
14
Rank 14
4 two Kidde 21033083 CUACFEX Smoke And Carbon Monoxide Alarm
$37.99 New
$37.99 New
---- Used
No used products available
15
Rank 15
Kidde 9CO5-LP2 Battery Powered Carbon Monoxide Alarm
(108)
$16.96 New
$16.96 New
---- Used
No used products available
16
Rank 16
Google Nest 2nd Gen Protect Smoke and Carbon Monoxide Alarm Detector with Battery - White
(39)
$149.99 New
$149.99 New
$45.00 Used
$45.00 Used
17
Rank 17
-Open Box- Kidde Smoke Carbon Monoxide Detector Wire- 900-0225 PN 21032298
(3)
$31.99 New
$31.99 New
---- Used
No used products available
18
Rank 18
First Alert BRK SMICO105-AC Smoke/Carbon Mono Alarm Pack of 6 Pieces
(4)
$54.95 New
$54.95 New
---- Used
No used products available
19
Rank 19
6 Pack Kidde Firex Smoke Detector Hardwired Smoke Alarm
$19.79 New
$19.79 New
---- Used
No used products available
20
Rank 20
Kidde P4010ACSCO-WF Smoke + Carbon Monoxide Smart Alarm
(2)
$45.00 New
$45.00 New
---- Used
No used products available
21
Rank 21
6 PACK SITERWELL Hardwired Interconnect Smoke Alarm GS562A 9V Backup
$131.99 New
$131.99 New
---- Used
No used products available
22
Rank 22
Kidde 10 Year Sealed-In Battery-Powered Ionization Smoke Alarm
(7)
$15.99 New
$15.99 New
---- Used
No used products available
23
Rank 23
X-SENSE 3pack Combination Smoke and Carbon Monoxide Alarm - 10 YR Batt Life SC07
(6)
$21.25 New
$21.25 New
---- Used
No used products available
24
Rank 24
BRK SC9120B Smoke & Carbon Monoxide Detector
(24)
$55.00 New
$55.00 New
---- Used
No used products available
25
Rank 25
Airthings 223 Corentium Home Radon Detector
(193)
$62.99 New
$62.99 New
$34.99 Used
$34.99 Used
26
Rank 26
KIDDE DETECT Smoke & Carbon Monoxide Alarm 30CUA10 / 5" Design Self Testing
$39.93 New
$39.93 New
---- Used
No used products available
27
Rank 27
Kidde Smoke & CO Detector 30CUA10-V Hardwired 10-Year Battery Voice Alerts
(3)
$32.00 New
$32.00 New
---- Used
No used products available
28
Rank 28
Airthings 2928 Wave Mini Battery Operated Smart Indoor Air Quality Monitor
(2)
$12.50 New
$12.50 New
---- Used
No used products available
29
Rank 29
First Alert 9120B6CP Smoke Alarm - 6 Pack
(40)
$89.26 New
$89.26 New
$12.34 Used
$12.34 Used
30
Rank 30
Kidde Detect Smoke & Carbon Monoxide Detector Battery Powered 30CUDR (2 Pack)
(3)
$19.99 New
$19.99 New
---- Used
No used products available
31
Rank 31
First Alert CO400 Carbon Monoxide Alarm Detector
(175)
$15.99 New
$15.99 New
$14.00 Used
$14.00 Used
32
Rank 32
Kidde KN-COEG-3 Explosive Gas Alarm Carbon Monoxide Alarm Detector with Battery
(111)
$30.00 New
$30.00 New
$19.99 Used
$19.99 Used
33
Rank 33
First Alert SC9120B Smoke and Carbon Monoxide Detector
(329)
$56.99 New
$56.99 New
---- Used
No used products available
34
Rank 34
Kidde 201025759 120V Tamper Resistant Plug-In Carbon Monoxide Detector
(59)
$17.99 New
$17.99 New
$9.75 Used
$9.75 Used
35
Rank 35
Kidde 21007588 120V AC wire-in Hush Smoke Alarm with Battery Backup - 4 Pack
(42)
$79.99 New
$79.99 New
---- Used
No used products available
36
Rank 36
First Alert Z-Wave Smoke & Carbon Monoxide Detector Works with Ring
(34)
$24.99 New
$24.99 New
$17.86 Used
$17.86 Used
37
Rank 37
Kidde KN-COSM-BA Battery Operated Combination Smoke and Carbon Monoxide Alarm - White
(30)
$59.99 New
$59.99 New
---- Used
No used products available
38
Rank 38
Kidde 30CUAR Detect Smoke Carbon Monoxide Alarm- Hardwired AA Battery.
(3)
$30.00 New
$30.00 New
---- Used
No used products available
39
Rank 39
Kidde 900007601 Nighthawk Carbon Monoxide Alarm with Digital Display - White
(186)
$27.87 New
$27.87 New
$14.99 Used
$14.99 Used
40
Rank 40
Kidde i9010 Smoke Alarm
(12)
$12.99 New
$12.99 New
---- Used
No used products available
41
Rank 41
First Alert C0400 Carbon Monoxide Alarm - White
(39)
$16.10 New
$16.10 New
$9.99 Used
$9.99 Used
42
Rank 42
Kidde 900-CUAR Smoke & Carbon Monoxide Detector Alarm - 21032250
(8)
$32.00 New
$32.00 New
$28.95 Used
$28.95 Used
43
Rank 43
Kidde Worry Ten Year Life Smoke Alarm Photoelectric Model P3010L
(2)
$26.95 New
$26.95 New
$10.99 Used
$10.99 Used
44
Rank 44
Kidde 21028744 Smoke Alarm - i9010
(43)
$10.00 New
$10.00 New
$9.87 Used
$9.87 Used
45
Rank 45
Kidde 21029886 Firex Smoke Detector Hardwired with Battery Backup Front Load D
(21)
$44.99 New
$44.99 New
---- Used
No used products available
46
Rank 46
First Alert SC9120B Hardwired Smoke & Carbon Monoxide Detector with Battery Backup
(10)
$58.00 New
$58.00 New
$29.99 Used
$29.99 Used
47
Rank 47
Kidde 21006378 Hardwire Smoke Alarm Detector
(126)
$35.00 New
$35.00 New
---- Used
No used products available
48
Rank 48
Kidde P4010ACSAQ-WF Indoor Smoke Alarm - White
(5)
$18.88 New
$18.88 New
---- Used
No used products available
49
Rank 49
System Sensor 2WTA-B I3 Series Smoke Detector
(6)
$64.00 New
$64.00 New
---- Used
No used products available
50
Rank 50
Kidde P3010CU Smoke and Carbon Monoxide Combination Detector - White, 2 Pack
(20)
$79.99 New
$79.99 New
$35.00 Used
$35.00 Used
51
Rank 51
2 PACK Kidde Smoke Detector 10-Year Battery Powered LED Warning Light 20SD10
$40.00 New
$40.00 New
$19.99 Used
$19.99 Used
52
Rank 52
Kidde Firex Battery Operated Smoke and Carbon Monoxide Detector - White
(39)
$36.00 New
$36.00 New
---- Used
No used products available
53
Rank 53
Kidde Kitchen Combination Smoke Carbon Monoxide Alarm 10-Year Lithium Battery
(34)
$33.19 New
$33.19 New
$24.99 Used
$24.99 Used
54
Rank 54
Kidde 10-Year Lithium Battery-Operated Combination Smoke & Carbon
$24.00 New
$24.00 New
---- Used
No used products available
55
Rank 55
Kidde 900-0102A Battery Operated Combination Smoke/Carbon Monoxide Alarm with Voice Warning
(83)
$29.99 New
$29.99 New
---- Used
No used products available
56
Rank 56
First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery
(32)
$19.99 New
$19.99 New
$12.49 Used
$12.49 Used
57
Rank 57
Kidde Wire-Free Interconnect, Sealed Battery Combination Smoke and Carbon Monoxide Detector - White
(5)
$59.99 New
$59.99 New
$39.99 Used
$39.99 Used
58
Rank 58
Kidde Carbon Monoxide Alarm Kn-copp-b Nighthawk Technology See Notes
(5)
$16.95 New
$16.95 New
$14.00 Used
$14.00 Used
59
Rank 59
Airthings 322 Wave Enhance -Indoor Air Quality Monitor 31C
$88.99 New
$88.99 New
---- Used
No used products available
60
Rank 60
Two (2) X-Sense SC07 | Combination Smoke and CO Alarm | 10 Year Battery
(5)
$30.00 New
$30.00 New
---- Used
No used products available
61
Rank 61
Kidde Hardwired Smoke Detector - 2 Pack Missing Mounting Hardware Model 20SAR
$79.90 New
$79.90 New
---- Used
No used products available
62
Rank 62
2pack Kidde Carbon Monoxide and Smoke Alarm Value Pack 10 Year I1040
(3)
$18.00 New
$18.00 New
---- Used
No used products available
63
Rank 63
*Honeywell Resideo 5800CMBOV Wireless Combo Smoke / CO Detector
$169.99 New
$169.99 New
$128.00 Used
$128.00 Used
64
Rank 64
First Alert 1042409 Photoelectric Smoke Detector - 2 Pack
(11)
$32.00 New
$32.00 New
---- Used
No used products available
65
Rank 65
First Alert 1046731 10-YEAR BATTERY SMOKE ALARM SM210
$22.86 New
$22.86 New
---- Used
No used products available
66
Rank 66
Kidde Smoke Detector 10-Year Battery Photoelectric Sensor Smoke Alarm
$38.98 New
$38.98 New
---- Used
No used products available
67
Rank 67
Kidde Detect Smoke Alarm (20SD10-V)
$25.00 New
$25.00 New
---- Used
No used products available
68
Rank 68
System Sensor CO1224T Carbon Monoxide Detector
(7)
$45.95 New
$45.95 New
$20.00 Used
$20.00 Used
69
Rank 69
BRK SMI100-AC Interconnectable Ion Smoke Alarm w/Battery Backup 1046836
$16.99 New
$16.99 New
---- Used
No used products available
70
Rank 70
Kidde C3010 Battery-Powered Electrochemical Carbon Monoxide Detector
$19.00 New
$19.00 New
---- Used
No used products available
71
Rank 71
Kidde Pi9010 Smoke Detector Alarm
(11)
$26.99 New
$26.99 New
---- Used
No used products available
72
Rank 72
First Alert Onelink Safe & Sound Smoke and Carbon Monoxide Alarm
(8)
$149.75 New
$149.75 New
$129.99 Used
$129.99 Used
73
Rank 73
(4) Kidde FireX 21033085 Combo Smoke Carbon Monoxide Alarm Hardwired
$42.22 New
$42.22 New
---- Used
No used products available
74
Rank 74
Kidde KN-COB-LP2 Carbon Monoxide Alarm Detector
(52)
$8.00 New
$8.00 New
$7.99 Used
$7.99 Used
75
Rank 75
Kidde 20SD10 Smoke Detector LED Warning Light New. Open Box.
$21.99 New
$21.99 New
---- Used
No used products available
76
Rank 76
KIDDE Detect Smoke & Carbon Monoxide Alarm 30CUDR-V Voice Alerts Battery
(1)
$29.49 New
$29.49 New
---- Used
No used products available
77
Rank 77
First Alert 1039746 Dual-Power Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display
(8)
$27.75 New
$27.75 New
$22.50 Used
$22.50 Used
78
Rank 78
Kidde KN-COP-DP-10YL-AQ-WF Carbon Monoxide Alarm w/ Indoor Air Quality Monitor
(3)
$20.00 New
$20.00 New
$17.99 Used
$17.99 Used
79
Rank 79
First Alert 1038907 Z-Wave Smoke and Carbon Monoxide Detector
(11)
$20.00 New
$20.00 New
---- Used
No used products available
80
Rank 80
Samsung SmartThings ADT Carbon Monoxide Alarm
(1)
$11.99 New
$11.99 New
---- Used
No used products available
81
Rank 81
Kidde P4010ACSCO AC Hardwired Combination 1 Carbon Monoxide & Photoelectric
(8)
$78.00 New
$78.00 New
$24.88 Used
$24.88 Used
82
Rank 82
BRK 1046858 FirstAlert Ionization Smoke Alarm with Lithium Battery (SMI110)
$17.98 New
$17.98 New
---- Used
No used products available
83
Rank 83
Honeywell 5800COMBO Carbon Monoxide Detector
(4)
$129.99 New
$129.99 New
$69.00 Used
$69.00 Used
84
Rank 84
First Alert Smoke & Fire Alarm Battery Included Sa303cn A8
(11)
$17.45 New
$17.45 New
---- Used
No used products available
85
Rank 85
BRK HD6135FB Smoke Alarm
(21)
$28.99 New
$28.99 New
---- Used
No used products available
86
Rank 86
Kidde FireX KN-COPE-IC Smoke & Carbon Monoxide Alarm 21007624 Photoelectric
(51)
$44.99 New
$44.99 New
$26.99 Used
$26.99 Used
87
Rank 87
4 x BRK 4 Count Contractor Pack Combination Smoke & CO2 Alarm SMIC0100-AC
$195.00 New
$195.00 New
---- Used
No used products available
88
Rank 88
BRK 1046850 SMI105-AC Interconnectable Ion Smoke Alarm W/10YR Battery Backup
$24.99 New
$24.99 New
---- Used
No used products available
89
Rank 89
First Alert BRK SC9120B-6 Hardwired Alarm Smoke Detector Pack of 6
$11.35 New
$11.35 New
---- Used
No used products available
90
Rank 90
x Honeywell Resideo 5800COV Carbon Monoxide CO Detector
$76.00 New
$76.00 New
---- Used
No used products available
91
Rank 91
2GIG SMKT8E Encrypted Smoke/Heat/Freeze Detector
$79.99 New
$79.99 New
---- Used
No used products available
92
Rank 92
Kidde Carbon Monoxide Alarm Kn-cob-dp-h 900-0107 Plug in Detector 85db
(4)
$17.99 New
$17.99 New
$14.99 Used
$14.99 Used
93
Rank 93
First Alert 1044091 Micro Design Smoke Alarm - 2 Pack
(8)
$39.99 New
$39.99 New
---- Used
No used products available
94
Rank 94
First Alert Ultimate Carbon Monoxide Alarm Smoke Detector Combo 2 in 1 SC01N
(3)
$19.99 New
$19.99 New
---- Used
No used products available
95
Rank 95
Kidde 10-Year Battery Powered Smoke Detector with Photoelectric Sensor 21031466
$21.99 New
$21.99 New
---- Used
No used products available
96
Rank 96
First Alert Plug-in Carbon Monoxide Alarm Fat1039730
(3)
$11.95 New
$11.95 New
---- Used
No used products available
