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Amazon Best Sellers
Our most popular products based on sales. Updated hourly.
Best Sellers in
Household Sensors & Alarms
#1
Kidde 21026043 Battery-Operated (Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA
4.7 out of 5 stars
14,192
$28.78
#2
First Alert 1038789 Standard Home Fire Extinguisher, Red
4.8 out of 5 stars
14,212
$20.98
#3
White, AC Carbon Monoxide Detector Alarm, Plug-in with Battery Backup, Model KN-COP-DP2
$17.87
-
$155.00
#4
Kidde KN-COB-LP2 9CO5-LP2 21025778 Carbon Monoxide Alarm Battery, 1 Pack
4.7 out of 5 stars
14,234
$9.87
-
$47.40
#5
Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
4.7 out of 5 stars
15,031
$28.03
#6
Kidde - 21026051 Smoke Detector Alarm | Battery Operated | Model # i9050
4.6 out of 5 stars
5,899
$9.90
#7
First Alert Radon Gas Test Kit, RD1
4.4 out of 5 stars
4,260
$13.88
#8
First Alert Plug-In Carbon Monoxide Detector, CO600
4.7 out of 5 stars
11,457
$21.49
-
$89.95
#9
First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector with Battery Backup
4.7 out of 5 stars
8,587
$34.99
-
$66.96
#10
Kidde Carbon Monoxide Alarm Detector | Digital Display | Battery Operated | Model KN-COPP-B-LPM
4.7 out of 5 stars
10,378
$22.36
#11
Kidde AC Plug-In Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3
4.7 out of 5 stars
5,450
$39.35
#12
First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup and Digital Display, CO615
4.6 out of 5 stars
3,943
$31.85
-
$134.66
#13
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
2,060
$39.99
-
$189.99
#14
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
1,263
$32.29
-
$144.49
#15
FIRST ALERT CO400 Carbon Monoxide Detector, White
4.6 out of 5 stars
6,535
$12.60
-
$169.99
#16
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
4,031
$144.59
#17
Combination Smoke and Carbon Monoxide Detector Alarm Battery Operated Digital Display for Travel Home Bedroom and Kitchen
4.5 out of 5 stars
1,257
$22.99
#18
First Alert BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup 4 Pack
4.8 out of 5 stars
988
$41.45
#19
3 Pack Fire Alarms Smoke Detector Battery Operated with Photoelectric Sensor and Silence Button, Travel Portable Smoke Alarms
4.5 out of 5 stars
1,721
$33.99
#20
Govee WiFi Water Sensor 3 Pack, 100dB Adjustable Alarm and App Alerts, Leak and Drip Alert with Email, for Home, Basement
4.3 out of 5 stars
2,979
$49.99
#21
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
398
$39.99
-
$117.99
#22
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
285
$38.99
-
$107.99
#23
Techamor Y201 Portable Methane Propane Combustible Natural Gas Leak Sniffer Detector
4.5 out of 5 stars
2,599
$34.99
#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
2,127
$18.99
-
$33.99
#25
Google S3006WBUS Nest Protect, S3000BWES, 2nd Gen, Battery, 3-Pack Alarm-Smoke Carbon Monoxide Detector, 3, White
4.6 out of 5 stars
3,168
$114.04
-
$349.00
#26
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
3,125
$32.99
-
$42.82
#27
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
1,776
$48.59
#28
Kidde I4618AC Alarm Hardwire Smoke Detector with 9V Backup and Front Load Battery Door | Model i4618, White
4.6 out of 5 stars
1,363
$13.22
#29
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
1,447
$39.99
#30
Kidde i12040 120v Ac/dc Smoke Alarm w/ Battery Back up Lot of 6 by KIDDE
4.8 out of 5 stars
1,584
$54.37
#31
Little Giant Ladders, Flip-N-Lite, 4-Foot, Stepladder, Aluminum, Type 1A, 300 lbs Rated (15272-001)
4.9 out of 5 stars
4,089
$61.71
-
$213.18
#32
X-Sense Wireless Interconnected Smoke Alarm with Over 820 ft Transmission Range, Replaceable Battery-Operated Mini Fire Alarm, XS01-WR
4.4 out of 5 stars
6
$35.99
-
$165.99
#33
3 Pack Combination Smoke and Carbon Monoxide Detector 10 Year Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen
4.5 out of 5 stars
324
$60.99
#34
First Alert Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, SA320CN
4.5 out of 5 stars
2,072
$32.73
#35
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
941
$20.99
#36
First Alert Smoke Detector Alarm | Battery Powered with Wireless Interconnect | 2-Pack, SA511CN2-3ST
4.5 out of 5 stars
832
$67.40
#37
Smart Leak Sensor, YoLink 1/4 Mile World's Longest Range Wireless Smart Water Leak Sensor Compatible with Alexa and IFTTT Leak Detector with App Alerts and Remote Monitor, YoLink Hub Included
4.6 out of 5 stars
149
$36.99
-
$68.99
#38
3 Pack Combination Smoke and Carbon Monoxide Detector 10 Year Battery Operated with Digital Display, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen
4.4 out of 5 stars
423
$64.99
#39
4 Pack Battery Operated Smoke Detector & Fire Alarm with Photoelectric Sensor,Easy to Install with Test Button
4.6 out of 5 stars
1,255
$40.99
#40
X-Sense Mini Smoke Alarm, 10-Year Battery Fire Alarm Smoke Detector with LED Indicator & Silence Button, XS01, 3-Pack
4.7 out of 5 stars
102
$58.99
-
$107.99
#41
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
203
$28.99
-
$129.99
#42
Carbon Monoxide Detector Alarm - with Digital LCD Display and Voice Warning Battery Powered
4.4 out of 5 stars
2,072
$19.48
#43
Airthings 2950 Wave (2nd Gen) - Smart Radon Detector with Humidity & Temperature Sensor – Easy-to-Use – Accurate – No Lab Fees – Battery Operated - Free App
4.5 out of 5 stars
357
$145.00
#44
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
789
$29.97
#45
Smoke Alarm with Escape Light, X-Sense SD01 10-Year Battery (Not Hardwired) Fire Smoke Alarm, Compliant with UL 217 Standard
4.7 out of 5 stars
613
$29.99
-
$265.99
#46
First Alert Carbon Monoxide Detector|No Outlet Required, Battery Operated, 2-Pack, CO400
4.7 out of 5 stars
987
$33.49
#47
2 Pack Digital Display Combination Photoelectric Smoke Detector Alarm, Protect Your Home from Fire and Gas Leaks
4.5 out of 5 stars
551
$36.99
#48
Home Radon Detector, Elifecity Portable Radon Meter, Long and Short Term Home Radon Monitor, Battery-Powered, Easy-to-Use
4.1 out of 5 stars
11
$89.99
#49
Photoelectric Smoke Detector Fire Alarm Battery-Operated 2 Pack
4.6 out of 5 stars
751
$19.99
#50
Kidde i12040 Hardwire Smoke Alarm with Hush Feature and Battery Backup, Alkaline Battery
4.7 out of 5 stars
127
$13.66
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