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Amazon Best Sellers
Our most popular products based on sales. Updated hourly.
Best Sellers in
Household Sensors & Alarms
#51
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
#52
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
124
$53.99
-
$107.99
#53
X-Sense SD03 10-Year Battery Smoke Detector Alarm, ETL Listed Fire Alarm with Photoelectric Sensor, Auto-Check & Silence Button
4.7 out of 5 stars
553
$27.99
-
$255.99
#54
First Alert Fire Extinguisher | Garage Fire Extinguisher, Red, Garage10 FE10GR
4.8 out of 5 stars
660
$22.87
-
$74.77
#55
Smart Leak Sensors, 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, 4 Pack, YoLink Hub Included
4.7 out of 5 stars
738
$68.99
#56
Kidde 21026065 Smoke & Carbon Monoxide Alarm with Voice Warning
4.6 out of 5 stars
1,139
$34.95
-
$90.77
#57
Honeywell Home RWD21 Water Leak Alarm
4.5 out of 5 stars
1,026
$9.29
-
$29.99
#58
First Alert Slim Photoelectric Smoke Alarm with 10-Year Sealed Battery, PR710
4.0 out of 5 stars
797
$14.99
-
$37.69
#59
Kidde KA-F Smoke Detector Quick Convert Adapter from Firex to Kidde (900-0149)-2PK
4.6 out of 5 stars
967
$14.00
-
$27.62
#60
Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Meter with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
4.6 out of 5 stars
451
$101.29
#61
Govee Water Detectors 2 Pack, 100dB Adjustable Audio Alarm, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)
4.7 out of 5 stars
929
$19.99
#62
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
394
$145.99
#63
First Alert BRK CO5120BN Hardwired Carbon Monoxide (CO) Detector with Battery Backup
4.7 out of 5 stars
579
$25.90
#64
Natural Gas Detector, Propane Detectors for Home,Natural Gas Propane Leak Alarm for Home Kitchen, High Sensitivity Natural Gas Propane Leak Detection
4.5 out of 5 stars
286
$18.39
#65
First Alert BRK Brands 9120B Hardwired Smoke Alarm with Battery Backup 4 Pack
4.8 out of 5 stars
1,035
$41.03
#66
Instapark Water Leakage Detection Alarm and Sensor, Low Battery Alert Pack of 3
4.5 out of 5 stars
1,808
$19.99
#67
First Alert SCO501CN-3ST Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Location
4.6 out of 5 stars
1,149
$42.99
-
$84.95
#68
2 Pack Digital Display Combination Photoelectric Smoke Detector Alarm, Protect Your Home from Fire and Gas Leaks
4.6 out of 5 stars
620
$38.99
#69
First Alert Smoke Detector Alarm | Battery Powered with Wireless Interconnect | 2-Pack, SA511CN2-3ST
4.5 out of 5 stars
864
$66.54
#70
Radon Test Kit for Home - Easy to Use Charcoal Radon Gas Detector for Peace of Mind | 48-96h Short Term EPA Approved Radon Tester | Includes Lab Fees | Protect Yourself and Your Family | 1-Pack
4.4 out of 5 stars
408
$22.99
#71
Zircon - 70382 Leak Alert Water Leak Detector & Flood Sensor Alarm/ Water Leak Sensor with 90Db Audio Alarm/ Battery Powered-Batteries Not Included
4.4 out of 5 stars
1,983
$11.99
-
$105.99
#72
Carbon Monoxide Detector 3 Pack,CO Alarm Detector Sensor Battery Operated with LCD Digital Display for House Kitchen Bedroom Living Room Basement Garage Hotel Office (3AA Batteries NOT Included)
4.5 out of 5 stars
385
$26.98
#73
6 Pack Fire Alarms Smoke Detector Battery Operated with Photoelectric Sensor and Silence Button, Travel Portable Smoke Alarms
4.6 out of 5 stars
406
$50.99
#74
DIY Mold Test, Mold Testing Kit (3 tests). Lab Analysis and Expert Consultation included
4.3 out of 5 stars
1,218
$45.95
#75
SITERWELL Smoke Detector , Fire Alarm Smoke Detector with Photoelectric Sensor and 9V Battery Operated(Include), 10-Year Fire Alarm with UL Listed, Fire Safety for Kitchen,Home, GS528A, 2 Packs
4.5 out of 5 stars
643
$18.99
-
$52.99
#76
Photoelectric Smoke Detector Fire Alarm Battery-Operated 2 Pack
4.6 out of 5 stars
826
$19.99
#77
X-Sense CD07 Carbon Monoxide Detector Alarm, 10-Year Battery (Not Hardwired) CO Alarm Detector with LCD Display, Compliant with UL 2034 Standard, Auto-Check & Silence Button
4.7 out of 5 stars
294
$35.99
#78
Carbon Monoxide Detector Gas Detection, WJZXTEK Digital Display Carbon Monoxide Alarm, Electronic Equipment, Power Detection Equipment, Alarm Clock Warning, UL2034
4.6 out of 5 stars
3
$11.99
-
$21.99
#79
Kidde KN-COPE-IC AC Photoelectric Smoke and Carbon Monoxide Detector Alarm Hardwired With Battery Backup
4.7 out of 5 stars
244
$44.98
-
$63.37
#80
X-Sense 10-Year Battery Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke and CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC08
4.7 out of 5 stars
70
$39.99
-
$107.99
#81
4 Pack Battery Operated Smoke Detector & Fire Alarm with Photoelectric Sensor,Easy to Install with Test Button
4.6 out of 5 stars
1,341
$42.99
#82
Propane/Natural Gas Detector, Home Gas Leak Alarm, Tester, Sensor, Sniffer; Monitor Combustible Explosive Gas Level: Methane, Butane, LPG, LNG; Voice/Light Warning & LED Display; eBook
4.3 out of 5 stars
876
$29.99
#83
SITERLINK Fire Alarms Smoke Detectors Smoke Alarm Pack with Low Battery Warning 9V Battery Operated(Include), Photoelectric Fire Detector for Home Bedroom and Babyroom, UL Listed, GS528A, 2 Packs
4.7 out of 5 stars
36
$18.99
-
$69.99
#84
Govee Water Detectors, 100dB Adjustable Audio Alarm, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)
4.6 out of 5 stars
949
$10.99
#85
X-Sense Carbon Monoxide Detector Alarm 10-Year Battery (Not Hardwired) CO Alarm Detector, Compliant with UL 2034 Standard, Auto-Check & Silence Button, CD03
4.7 out of 5 stars
65
$29.99
-
$93.99
#86
SimpliSafe Water Sensor Alarm-Flood Detection-Compatible Home Security System (New Gen)
4.7 out of 5 stars
252
$19.99
#87
Kidde i9030 FyreWatch Battery-Operated Smoke Alarm
4.6 out of 5 stars
425
$6.44
#88
Kidde I12040 Hardwired Smoke Alarm Battery Backup Interconnectable Ionization
4.8 out of 5 stars
131
$14.85
#89
Smoke Detector Fire Alarm, 2 Packs Photoelectric Smoke Detectors with UL Listed, 9V Battery Operated Smoke Detector (9V Battery Included), 10 Years Life Time, Fire Safety for Home, Hotel, School etc
4.5 out of 5 stars
964
$18.99
#90
Kidde 21007267 Nighthawk Carbon Monoxide Alarm, Battery Operated with Digital Display | Model KN-Copp-B-LS Pack of 2
4.8 out of 5 stars
795
$23.75
-
$156.46
#91
Handheld CO Detector,Carbon Monoxide Meter, Portable CO Gas Leak Detector, Gas Analyzer, High Precision Detector, 0~1000ppm(Battery NOT Included)
4.2 out of 5 stars
246
$55.99
#92
Car, Vehicle, Aircraft Carbon Monoxide CO Detector | Fast Low-Level 9ppm Alarm | Vehicles, Police, Pilots, Travel, Bus, Trucks | Metal Body, Small 2oz |
4.5 out of 5 stars
280
$99.95
#93
Moen 900-001 Flo by Moen 3/4-Inch Smart Water Shutoff with 920-004 Flo by Moen Smart Water Detector, 1-Pack
4.5 out of 5 stars
437
$396.97
-
$944.97
#94
Natural Gas Detector, Gas Leak Detector, Household Propane Leak Detector, Propane Leak Detector, Natural Gas Leak Detector (White) (1, White)
4.4 out of 5 stars
178
$18.99
-
$33.99
#95
Combination Smoke and Carbon Monoxide Detector Alarm, GLBSUNION Beeps Warning Smoke and CO Alarm for Basements Travel Home Office Kitchen Bedroom, Battery Operated, Comply with UL 217/2034,1-Pack
4.5 out of 5 stars
391
$15.99
-
$29.99
#96
FireX 4618 Dectector
4.6 out of 5 stars
188
$14.50
-
$20.00
#97
Kidde 21010170 10 Year Smoke and Carbon Monoxide Alarm Detector | Photoelectric | Kitchen | Model P3010K-CO
4.6 out of 5 stars
1,479
$35.89
-
$81.77
#98
First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide (CO) Detector with 10 Year Sealed Battery Backup
4.7 out of 5 stars
450
$45.12
#99
10 Year Battery (Not Hardwired) Combination Photoelectric Smoke Detector and Carbon Monoxide Detector Alarm with LCD Display
4.4 out of 5 stars
561
$31.99
#100
Kidde Model i9040 Battery-Operated Ionization sensor Compact Smoke Detector Alarm
4.7 out of 5 stars
3,380
$9.25
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