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Best selling products: Best
Google Home Home Carbon Monoxide Detectors Detectors
Bestselling
Top Rated
1
Rank 1
Google Nest Protect Smoke and Carbon Monoxide Alarm 2nd Gen - S3000BWES
(402)
$31.44 New
$31.44 New
---- Used
No used products available
2
Rank 2
Google Nest Protect Carbon Monoxide Smoke Detector - S3003LWES
(203)
$16.00 New
$16.00 New
$14.54 Used
$14.54 Used
3
Rank 3
Kidde i9010 Smoke Alarm
(10)
$11.69 New
$11.69 New
---- Used
No used products available
4
Rank 4
BRK First Alert 9120B Smoke Detector
(567)
$11.00 New
$11.00 New
---- Used
No used products available
5
Rank 5
Google Nest 2nd Gen Protect Smoke and Carbon Monoxide Alarm Detector with Battery - White
(39)
$150.00 New
$150.00 New
$51.30 Used
$51.30 Used
6
Rank 6
Airthings Wave Radon Battery Operated Smart Radon Detector 2951
(2)
$34.99 New
$34.99 New
---- Used
No used products available
7
Rank 7
Honeywell 5800SMOKEV Wireless Smoke Heat Detecto Factory / w Battery
(2)
$58.99 New
$58.99 New
$45.95 Used
$45.95 Used
8
Rank 8
Google Nest Temperature Sensor - White (T5000SF)
(83)
$16.99 New
$16.99 New
---- Used
No used products available
9
Rank 9
Digital Radon Detector Airthings 2350
(97)
$50.00 New
$50.00 New
$45.00 Used
$45.00 Used
10
Rank 10
Kidde P4010ACSCO-WF Smoke + Carbon Monoxide Smart Alarm
(1)
$37.99 New
$37.99 New
---- Used
No used products available
11
Rank 11
Kidde Smart Smoke Detector WiFi Alexa Compatible Hardwired Mobile Alerts
(1)
$19.00 New
$19.00 New
---- Used
No used products available
12
Rank 12
Kidde 30CUA10 Smoke & Carbon Monoxide Alarm Hardwired 10-Year Battery
$34.99 New
$34.99 New
---- Used
No used products available
13
Rank 13
Kidde Detect 30CUDR / 21032830 Combination Smoke & Carbon Monoxide Alarm White
(1)
$89.99 New
$89.99 New
---- Used
No used products available
14
Rank 14
Kidde 21007581 Hardwired Smoke Alarm with Battery Backup
(219)
$30.00 New
$30.00 New
$9.99 Used
$9.99 Used
15
Rank 15
Kidde 21026056 Model i9040 Ionization Smoke Alarm
(183)
$9.99 New
$9.99 New
---- Used
No used products available
16
Rank 16
Kidde 10 Year Sealed-In Battery-Powered Ionization Smoke Alarm
(7)
$18.95 New
$18.95 New
---- Used
No used products available
17
Rank 17
BRK SC9120B Smoke & Carbon Monoxide Detector
(23)
$54.00 New
$54.00 New
$28.99 Used
$28.99 Used
18
Rank 18
Kidde 21006377 Hardwired Combination Carbon Monoxide & Smoke Alarm
(181)
$115.99 New
$115.99 New
$60.00 Used
$60.00 Used
19
Rank 19
Kidde 21008697 Smoke Detector Alarm - White
(22)
$16.99 New
$16.99 New
---- Used
No used products available
20
Rank 20
Kidde P4010ACSAQ-WF Indoor Smoke Alarm - White
(1)
$19.00 New
$19.00 New
---- Used
No used products available
21
Rank 21
First Alert Z-Wave Smoke & Carbon Monoxide Detector Works with Ring
(31)
$24.99 New
$24.99 New
$17.86 Used
$17.86 Used
22
Rank 22
Ring 4SS1S8-0EN0 Alarm Smoke & CO Listener
(16)
$22.99 New
$22.99 New
$17.99 Used
$17.99 Used
23
Rank 23
Kidde Smart Smoke Carbon Monoxide Alarm Detector - P4010ACSCOAQWF
(7)
$38.98 New
$38.98 New
---- Used
No used products available
24
Rank 24
Kidde 21006378 Hardwire Smoke Alarm Detector
(123)
$30.99 New
$30.99 New
---- Used
No used products available
25
Rank 25
Kidde 21007588 120V AC wire-in Hush Smoke Alarm with Battery Backup - 4 Pack
(40)
$79.99 New
$79.99 New
$29.99 Used
$29.99 Used
26
Rank 26
Kidde KN-COEG-3 Explosive Gas Alarm Carbon Monoxide Alarm Detector with Battery
(110)
$35.00 New
$35.00 New
$12.00 Used
$12.00 Used
27
Rank 27
Kidde P12040 Interconnect Photoelectric Smoke Alarm - 21006371
(23)
$23.99 New
$23.99 New
---- Used
No used products available
28
Rank 28
Airthings 223 Corentium Home Radon Detector
(189)
$69.95 New
$69.95 New
$60.29 Used
$60.29 Used
29
Rank 29
Kidde 30CUAR-V Smoke Carbon Monoxide Detector Alarm Hardwire Battery
$37.99 New
$37.99 New
$21.24 Used
$21.24 Used
30
Rank 30
First Alert Smoke Detector - White
(19)
$19.99 New
$19.99 New
$13.45 Used
$13.45 Used
31
Rank 31
Kidde 900-CUAR-V Smoke & Carbon Monoxide Detector - 21032084
(2)
$39.99 New
$39.99 New
---- Used
No used products available
32
Rank 32
Kidde FireX KN-COPE-IC Smoke & Carbon Monoxide Alarm 21007624 Photoelectric
(51)
$46.00 New
$46.00 New
$24.99 Used
$24.99 Used
33
Rank 33
First Alert SC9120B Smoke and Carbon Monoxide Detector
(329)
$54.95 New
$54.95 New
$24.97 Used
$24.97 Used
34
Rank 34
Kidde 21028744 Smoke Alarm - i9010
(43)
$23.50 New
$23.50 New
$15.00 Used
$15.00 Used
35
Rank 35
Kidde 900007601 Nighthawk Carbon Monoxide Alarm with Digital Display - White
(185)
$27.99 New
$27.99 New
$15.50 Used
$15.50 Used
36
Rank 36
2 Pack BRK Hardwire w/Battery Backup SMI100-AC Ionization Smoke Alarm
$14.85 New
$14.85 New
---- Used
No used products available
37
Rank 37
BRK Combination Smoke/Carbon Monoxide Alarm Hardwired 2025 Production
(2)
$34.99 New
$34.99 New
$22.00 Used
$22.00 Used
38
Rank 38
Kidde 900-CUAR Smoke & Carbon Monoxide Detector Alarm - 21032250
(7)
$31.00 New
$31.00 New
$28.95 Used
$28.95 Used
39
Rank 39
KIDDE 30CUA10-V CO ALARM HARDWIRED 10 YEAR BACKUP BATTERY AND VOICE ALERTS
(3)
$49.99 New
$49.99 New
---- Used
No used products available
40
Rank 40
Kidde P3010CU Smoke and Carbon Monoxide Combination Detector - White, 2 Pack
(19)
$59.99 New
$59.99 New
---- Used
No used products available
41
Rank 41
Airthings 2928 Wave Mini Battery Operated Smart Indoor Air Quality Monitor
(1)
$18.00 New
$18.00 New
$16.55 Used
$16.55 Used
42
Rank 42
First Alert 9120B6CP Smoke Alarm - 6 Pack
(38)
$89.26 New
$89.26 New
$12.34 Used
$12.34 Used
43
Rank 43
First Alert SC9120LBL Smoke and Carbon Monoxide Alarm
(7)
$54.00 New
$54.00 New
$29.99 Used
$29.99 Used
44
Rank 44
X-SENSE 3pack Combination Smoke and Carbon Monoxide Alarm - 10 YR Batt Life SC07
(6)
$29.95 New
$29.95 New
---- Used
No used products available
45
Rank 45
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
46
Rank 46
First Alert CO710 Carbon Monoxide Detector with Digital Temperature Display (1039753)
(10)
$19.95 New
$19.95 New
$9.00 Used
$9.00 Used
47
Rank 47
6 Pack Kidde 21033083 CUACFEX Smoke And Carbon Monoxide Alarm
$39.99 New
$39.99 New
---- Used
No used products available
48
Rank 48
Kidde Firex Smoke Detector Hardwired Model SMACFEX Withe REGULAR SMOKE DETEC
$22.00 New
$22.00 New
---- Used
No used products available
49
Rank 49
Kidde P4010ACS-W AC Hardwired Smoke Alarm
(1)
$49.95 New
$49.95 New
---- Used
No used products available
50
Rank 50
Kidde 30CUAR Detect Smoke Carbon Monoxide Alarm
(3)
$33.99 New
$33.99 New
---- Used
No used products available
51
Rank 51
Kidde KN-COSM-BA Battery Operated Combination Smoke and Carbon Monoxide Alarm - White
(30)
$39.99 New
$39.99 New
---- Used
No used products available
52
Rank 52
SMOKE ALARM IONIZATION BRK ELECTRONICS 83RN
$14.29 New
$14.29 New
---- Used
No used products available
53
Rank 53
Airthings Wave Mini Smart Indoor Quality Monitor Model 2928
(10)
$17.95 New
$17.95 New
---- Used
No used products available
54
Rank 54
First Alert BRK SC7010BV Talking Photoelectric Smoke and Carbon Monoxide Alarm - White
(50)
$74.99 New
$74.99 New
---- Used
No used products available
55
Rank 55
Kidde Kitchen Combination Smoke Carbon Monoxide Alarm 10-Year Lithium Battery
(33)
$28.99 New
$28.99 New
$23.99 Used
$23.99 Used
56
Rank 56
Kidde Firex Battery Operated Smoke and Carbon Monoxide Detector - White
(39)
$42.99 New
$42.99 New
---- Used
No used products available
57
Rank 57
Kidde 201025759 120V Tamper Resistant Plug-In Carbon Monoxide Detector
(56)
$17.50 New
$17.50 New
$9.75 Used
$9.75 Used
58
Rank 58
Kidde Quick Connect Wiring Adapter For Hardwired Smoke & Detector Alarm 20-9003
(2)
$6.20 New
$6.20 New
---- Used
No used products available
59
Rank 59
Kidde 21029886 Firex Smoke Detector Hardwired with Battery Backup Front Load D
(20)
$29.99 New
$29.99 New
---- Used
No used products available
60
Rank 60
Kidde Carbon Monoxide Alarm 120v Direct Wire W Battery Backup 900-0120 B24
(15)
$25.00 New
$25.00 New
$22.00 Used
$22.00 Used
61
Rank 61
Kidde KN-COP-DP-10YL-AQ-WF Carbon Monoxide Alarm w/ Indoor Air Quality Monitor
(3)
$22.94 New
$22.94 New
---- Used
No used products available
62
Rank 62
First Alert CO400 Carbon Monoxide Alarm Detector
(172)
$15.95 New
$15.95 New
$12.99 Used
$12.99 Used
63
Rank 63
Kidde Detect Smoke & Carbon Monoxide Alarm Hardwired Voice Model 30CUA10-V
$30.69 New
$30.69 New
---- Used
No used products available
64
Rank 64
Honeywell Resideo 5800COV Carbon Monoxide CO Detector Replaced 5800CO
$59.99 New
$59.99 New
$40.00 Used
$40.00 Used
65
Rank 65
Kidde 30CUDR-V DETECT Combination Smoke & Carbon Monoxide Alarm
$24.99 New
$24.99 New
---- Used
No used products available
66
Rank 66
First Alert 1039868 Battery-Powered Smoke & Carbon Monoxide Alarm - White
(84)
$24.95 New
$24.95 New
---- Used
No used products available
67
Rank 67
Kidde 30CUD10-V Smoke/Carbon Monoxide Detector 10-Year Batt. Voice Alerts E27
$34.00 New
$34.00 New
---- Used
No used products available
68
Rank 68
x Honeywell Resideo 5800CMBOV Combination Smoke/CO Detector
$399.00 New
$399.00 New
---- Used
No used products available
69
Rank 69
BRK-First Alert 7030BSL Smoke & Carbon Monoxide Alarm with LED Strobe
$110.00 New
$110.00 New
---- Used
No used products available
70
Rank 70
Kidde P3010L 10-Year Worry- Battery Powered Smoke Alarm
(2)
$17.99 New
$17.99 New
---- Used
No used products available
71
Rank 71
System Sensor CO1224T Carbon Monoxide Detector
(7)
$47.50 New
$47.50 New
---- Used
No used products available
72
Rank 72
Kidde 30CUD10 Detect Smoke Carbon Monoxide 10 Year Battery Powered
(3)
$23.99 New
$23.99 New
---- Used
No used products available
73
Rank 73
Kidde Hardwired Interconnected Smoke Detector with Photoelectric Sensor (4-Pack)
$118.81 New
$118.81 New
---- Used
No used products available
74
Rank 74
Kidde RGSAR-RW Smart Smoke Alarm w/ Ring Alerts
$44.99 New
$44.99 New
---- Used
No used products available
75
Rank 75
First Alert SC7010B Smoke & Carbon Monoxide Alarm
(11)
$42.46 New
$42.46 New
---- Used
No used products available
76
Rank 76
BRK Hard-Wired w/Battery Back-up Ionization Smoke Detector 6-Pack
$84.95 New
$84.95 New
---- Used
No used products available
77
Rank 77
Airthings 2930 Air Quality Monitor
(15)
$119.95 New
$119.95 New
$94.95 Used
$94.95 Used
78
Rank 78
BRK Hardwire w/Battery Backup SMI100-AC Ionization Smoke Alarm Cat. 1046836 E13
$17.99 New
$17.99 New
---- Used
No used products available
79
Rank 79
First Alert Wireless Smoke & Carbon Monoxide Alarm White (FAT1039839)
(25)
$24.95 New
$24.95 New
$19.99 Used
$19.99 Used
80
Rank 80
Kidde 120v Hardwire Smoke Detector Battery Backup Voice Alarm P4010acs
(3)
$21.49 New
$21.49 New
$14.99 Used
$14.99 Used
81
Rank 81
Airthings 322 Wave Enhance Indoor Air Quality Monitor
$80.00 New
$80.00 New
---- Used
No used products available
82
Rank 82
Kidde Smoke & Carbon Monoxide Alarm Hardwired Battery 30CUAR Open Box
$36.99 New
$36.99 New
---- Used
No used products available
83
Rank 83
BRK Ionization Sensor Smoke Alarm 120V (9120LBL)
(7)
$23.83 New
$23.83 New
$16.41 Used
$16.41 Used
84
Rank 84
X-Sense SC07 Combination Smoke And Carbon Monoxide Alarm
(5)
$18.99 New
$18.99 New
---- Used
No used products available
85
Rank 85
Kidde KN-SMFM-I Smoke Alarm - 4 Pack
$299.95 New
$299.95 New
---- Used
No used products available
86
Rank 86
Kidde C3010 Carbon Monoxide Detector Alarm With 10 Year Battery
(9)
$26.99 New
$26.99 New
---- Used
No used products available
87
Rank 87
First Alert CO1210CP1 Carbon Monoxide Alarm - White
(29)
$12.77 New
$12.77 New
---- Used
No used products available
88
Rank 88
First Alert 1039871 Alarm Smoke - White
(37)
$24.99 New
$24.99 New
---- Used
No used products available
89
Rank 89
First Alert CO250B Carbon Monoxide Alarm Detector
(21)
$10.99 New
$10.99 New
---- Used
No used products available
90
Rank 90
Code One I9010 Lithium Ion Battery Operated Smoke Alarm - 3 Pack
(16)
$49.99 New
$49.99 New
---- Used
No used products available
91
Rank 91
First Alert 1039939 Hardwired Smoke Alarm With Battery Backup 1
(3)
$16.05 New
$16.05 New
---- Used
No used products available
92
Rank 92
Kidde Carbon Monoxide Alarm Kn-copp-b Nighthawk Technology See Notes
(5)
$22.00 New
$22.00 New
$8.99 Used
$8.99 Used
93
Rank 93
BRK 7010B 120V AC/DC Photo Smoke Alarm
(1)
$45.00 New
$45.00 New
$40.00 Used
$40.00 Used
94
Rank 94
Kidde SL177i Hardwire Inter-Connectable 120V Auxiliary Device-Strobe Light
(3)
$49.99 New
$49.99 New
---- Used
No used products available
95
Rank 95
BRK Wireless Interconnect Battery CO Alarm - CO511B
(6)
$40.00 New
$40.00 New
---- Used
No used products available
96
Rank 96
Kidde 20SDR Smoke Detector Battery Powered & LED Warning Light Indicators Box-Op
$22.00 New
$22.00 New
---- Used
No used products available
97
Rank 97
Kidde Twin Smoke Alarms Model I9050 Part # 0915d-018 Basic
(5)
$20.00 New
$20.00 New
---- Used
No used products available
98
Rank 98
Kidde 21006377-N FIREX Combination Smoke & Carbon Monoxide Alarm KN-COSM-IBA
$99.00 New
$99.00 New
---- Used
No used products available
99
Rank 99
Kidde P4010ACSCO AC Hardwired Combination 1 Carbon Monoxide & Photoelectric
(8)
$47.45 New
$47.45 New
---- Used
No used products available
