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Amazon Best Sellers
Our most popular products based on sales. Updated hourly.
Best Sellers in
Household Sensors & Alarms
#1
White, AC Carbon Monoxide Detector Alarm, Plug-in with Battery Backup, Model KN-COP-DP2
$17.87
-
$147.25
#2
First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CN
4.7 out of 5 stars
14,496
$31.20
-
$122.99
#3
First Alert BRK 9120LBL Hardwired Smoke Detector with Battery Backup
4.7 out of 5 stars
15,341
$11.39
-
$390.31
#4
White, Nighthawk Plug-in AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-Copp-3
$26.87
-
$67.25
#5
Kidde KN-COB-LP2 9CO5-LP2 21025778 Carbon Monoxide Alarm Battery, 1 Pack
4.7 out of 5 stars
15,089
$14.25
-
$47.40
#6
First Alert BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup AND First Alert Smoke Detector Alarm | Hardwired with Backup Battery, BRK9120b6CP
4.7 out of 5 stars
10,751
$34.99
-
$209.99
#7
First Alert Carbon Monoxide Detector| Battery Operated, CO400
#8
Kidde KN-COSM-IBA Hardwire Combination Smoke Carbon Monoxide Detector Battery Backup Voice Warning Interconnectable
4.7 out of 5 stars
4,874
$25.69
-
$305.90
#9
Corentium Home Radon Detector by Airthings 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
4.6 out of 5 stars
4,189
$141.37
#10
Kidde AC Plug-In Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3
4.7 out of 5 stars
5,679
$38.07
#11
First Alert CO605 Plug-in Battery Backup CO Alarm, 1 Pack, White and First Alert Smoke Detector Alarm | Hardwired with Backup Battery
4.7 out of 5 stars
11,867
$20.74
-
$89.95
#12
White, Carbon Monoxide Alarm Detector, Digital Display, Battery Operated, Model KN-Copp-B-LPM
$21.25
-
$46.01
#13
First Alert 10-Year Ionization sensor Smoke Alarm, 0827B, White
4.6 out of 5 stars
9,385
$7.67
-
$42.99
#14
X-Sense 10-Year Battery (Not Hardwired) Smoke and Carbon Monoxide Alarm with LCD Display, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC01
4.7 out of 5 stars
2,232
$39.99
-
$116.99
#15
First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup and Digital Display, CO615
4.6 out of 5 stars
3,852
$32.98
-
$134.66
#16
Google S3006WBUS Nest Protect, S3000BWES, 2nd Gen, Battery, 3-Pack Alarm-Smoke Carbon Monoxide Detector, 3, White
4.6 out of 5 stars
8,405
$117.50
-
$453.62
#17
Govee WiFi Water Sensor 3 Pack, 100dB Adjustable Alarm and App Alerts, Leak and Drip Alert with Email, for Home, Basement
4.4 out of 5 stars
3,137
$49.99
#18
Kidde Sealed Lithium Battery Power Smoke Detector Alarm | Model i9010
4.7 out of 5 stars
3,555
$14.84
#19
Kidde Intelligent Detector Alarm Battery Operated Combination Smoke & Carbon Monoxide Detector Alarm | Model KN-COSM-XTR-BA
4.6 out of 5 stars
565
$24.88
-
$65.68
#20
Y201 Propane and Natural Gas Leak Detector; Portable Gas Sniffer to Locate Gas Leaks of Combustible Gases like Methane, LPG, LNG, Fuel, Sewer Gas; w/ Flexible Sensor Neck, Sound & LED Alarm, eBook
4.4 out of 5 stars
3,327
$32.99
-
$42.82
#21
X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06
4.8 out of 5 stars
339
$37.99
-
$107.99
#22
3 Pack Fire Alarms Smoke Detector Battery Operated with Photoelectric Sensor and Silence Button, Travel Portable Smoke Alarms
4.5 out of 5 stars
1,835
$33.99
#23
X-Sense 10-Year Battery (Not Hardwired) Combination Smoke & Carbon Monoxide Alarm Detector with LCD Display, Compliant with UL 217 & UL 2034 Standards, SC07
4.7 out of 5 stars
460
$39.99
-
$117.99
#24
Natural Digital Gas Detector, Home Gas Alarm, Gas Leak Detector,High Sensitivity LPG LNG Coal Natural Gas Leak Detection, Alarm Monitor Sensor Home/Kitchen (1)
4.3 out of 5 stars
2,287
$18.99
-
$34.99
#25
Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/10 Year Lithium Battery Backup | Interconnectable | Model # i12010SCO, White
4.5 out of 5 stars
1,833
$41.20
#26
Techamor Y201 Portable Methane Propane Combustible Natural Gas Leak Sniffer Detector
4.5 out of 5 stars
2,700
$32.99
#27
X-Sense 10-Year Battery (Not Hardwired) Combination Smoke and Carbon Monoxide Alarm, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC03
4.7 out of 5 stars
1,344
$37.99
-
$169.99
#28
Kidde i12060 AC DC Hardwired Smoke Alarm Ionization Battery Backup
4.8 out of 5 stars
324
$13.99
#29
Radon Test Kit for Home - Shipping & Lab Fees Included | Easy to Use Charcoal Radon Gas Detector for Peace of Mind | 48-96h Short Term EPA Approved Radon Tester | Protect Yourself and Your Family
4.3 out of 5 stars
812
$29.97
#30
First Alert Smoke Detector and Carbon Monoxide Detector Alarm with Built-In 10-Year Battery, BRK PRC710
4.5 out of 5 stars
2,080
$36.97
-
$69.99
#31
Govee Water Detectors 5 Pack, 100dB Adjustable Audio Alarm, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)
4.7 out of 5 stars
1,535
$39.99
#32
Kidde I4618AC Alarm Hardwire Smoke Detector with 9V Backup and Front Load Battery Door | Model i4618, White
4.6 out of 5 stars
1,390
$12.49
#33
First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm, 2nd Generation
4.6 out of 5 stars
4,566
$34.75
-
$173.99
#34
Gas Detector Portable Natural Gas Tester Detector | Combustible Propane Methane Gas Sensor Sniffer with Sound Light Warning, Adjustable | CE Certified (P-AS8800L (Sound&Light Model))
4.5 out of 5 stars
1,005
$31.98
-
$39.90
#35
Kidde i12040 120v Ac/dc Smoke Alarm w/ Battery Back up Lot of 6 by KIDDE
4.8 out of 5 stars
1,693
11 offers from
$54.37
#36
Carbon Monoxide Detector Alarm - with Digital LCD Display and Voice Warning Battery Powered
4.4 out of 5 stars
2,155
$18.48
#37
Little Giant Ladders, Flip-N-Lite, 4-Foot, Stepladder, Aluminum, Type 1A, 300 lbs Rated (15272-001)
4.9 out of 5 stars
4,230
$61.71
-
$253.61
#38
Smoke Alarm with Escape Light, X-Sense SD01 10-Year Battery (Not Hardwired) Fire Smoke Alarm, Compliant with UL 217 Standard
4.8 out of 5 stars
646
$25.49
-
$226.09
#39
First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Photoelectric Sensor
4.6 out of 5 stars
1,252
$38.87
-
$671.30
#40
Smoke and Carbon Monoxide Detector - with LCD Display, Battery Operated Smoke CO Alarm Detector Combo Unit
4.4 out of 5 stars
553
$22.48
#41
First Alert BRK SC7010BV Hardwired Smoke and Carbon Monoxide (CO) Detector with Talking Photoelectric Sensor
4.6 out of 5 stars
1,578
$42.45
-
$724.66
#42
Airthings - 2930 Wave Plus - Radon & Air Quality Monitor (VOC, Humidity, Temp, CO2, Pressure)
4.3 out of 5 stars
698
$179.99
#43
X-Sense Smoke Alarm, 10-Year Battery-Operated Smoke and Fire Alarm with Photoelectric Sensor and Silence Button, Compliant with UL 217 Standard, SD06
4.8 out of 5 stars
235
$28.99
-
$129.99
#44
Smoke and Carbon Monoxide Detector - Battery Operated Smoke CO Alarm Detector Combo
4.2 out of 5 stars
807
$18.48
#45
First Alert Dual Sensor Smoke and Fire Alarm, SA3210
4.5 out of 5 stars
2,360
$32.73
-
$63.93
#46
First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup
4.6 out of 5 stars
1,270
$15.09
-
$299.95
#47
Govee WiFi Water Sensor, 100dB Adjustable Audio Alarm and Smart App Alerts, Leak and Drip Alert with Email, for Home, Basement
4.3 out of 5 stars
1,012
$20.99
#48
BLACK+DECKER Thermal Leak Detector (TLD100)
4.2 out of 5 stars
3,206
$38.07
#49
First Alert Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location, SCO500B
4.6 out of 5 stars
941
$42.99
-
$672.86
#50
SABRE Door Handle Alarm – 110dB Door Alarm for Home Security – Audible up to 600 Feet (185M) Away – Vibration-Triggered Security Alarm Sounds when Door Knob is Touched from Outside
4.0 out of 5 stars
1,689
$8.99
-
$23.27
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