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Safety Equipment and GearAir QualityAlarm SystemsAll Home SecurityBathroom PlumbingBreakers, Distributors, and Load CentersCar Emergency SuppliesCarbon Monoxide AlarmsCaulking & SealantsDimmers, Switches, and Wall PlatesDoor HardwareDoor Security HardwareDoorbellsElectrical ToolsEmergency SuppliesFire SafetyFlashlightsFurniture HardwareGarage Door Openers and HardwareGarage Storage SystemsHand ToolsHome SafetyHooksHVAC Ducting and VentilationKeysKiddeLight BulbsMailboxes and Mailbox AccessoriesMechanics ToolsPaint Supplies & ToolsPersonal PreparednessPersonal Protective EquipmentSafety DetectorsSealants, Fillers and AdhesivesSolar AccessoriesStorage ContainersStorm & Flood PrepSurveillanceTestersTile Tools & MaterialsTool Equipment & StorageWater FiltersWater Filtration & Water SoftenersWildfire PrepWoodworking Tools
Detector House(375)
Uses item details. Price when purchased online
Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA $779.00
Sponsored
$77900
current price $779.00Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA
Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm $42.99
Sponsored
$4299
current price $42.99Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm
74.3 out of 5 Stars. 7 reviews
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YoLink LoRa Smart Outdoor Motion Detector Sensor, Driveway Alert, Property Invasion/Tresspassing Detector, 1/4 Mile Open Air Range, Email/SMS/Push Alerts, Alexa, IFTTT, Home Assistant (Hub Required) From $35.59
Sponsored
From$3559
YoLink LoRa Smart Outdoor Motion Detector Sensor, Driveway Alert, Property Invasion/Tresspassing Detector, 1/4 Mile Open Air Range, Email/SMS/Push Alerts, Alexa, IFTTT, Home Assistant (Hub Required)
114.8 out of 5 Stars. 11 reviews
Briidea LD-078 110dB, Switch Household Sensors & Alarms $66.49 Was $74.99
Sponsored
Now$6649
current price Now $66.49, Was $74.99$74.99
Briidea LD-078 110dB, Switch Household Sensors & Alarms
24 out of 5 Stars. 2 reviews
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SITERWELL Smoke Detector, 10 Year Battery ,Photoelectric Sensor, Fire Alarm,Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 1 Packs From $25.99
8 options
Available in additional 8 optionsFrom$2599
SITERWELL Smoke Detector, 10 Year Battery ,Photoelectric Sensor, Fire Alarm,Low Battery and Fault Warning for House and Bedroom, UL217-9th Listed, GS525A, 1 Packs
1214.4 out of 5 Stars. 121 reviews
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Smoke Alarm Detector Home Safety Sensor Alert From $12.99
From$1299
Smoke Alarm Detector Home Safety Sensor Alert
44 out of 5 Stars. 4 reviews
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GJX Solar Driveway Alarm,2625 Ft Long Range Wireless Driveway Alarm,Outdoor Weather Resistant Motion Sensor Alarm with 1 Receiver and 1 Detector,Security Systems for House Fish Pond,Orchard
GJX Solar Driveway Alarm,2625 Ft Long Range Wireless Driveway Alarm,Outdoor Weather Resistant Motion Sensor Alarm with 1 Receiver and 1 Detector,Security Systems for House Fish Pond,Orchard
Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector From $12.99
From$1299
Smoke Alarm Home Security System Fire Protection Smoke Alarm Detector
44 out of 5 Stars. 4 reviews
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Formaldehyde Detector Volatile Gas Detector New House Decoration Emergency Check-in Formaldehyde Excessive Alarm Instrument $90.41
$9041
current price $90.41Formaldehyde Detector Volatile Gas Detector New House Decoration Emergency Check-in Formaldehyde Excessive Alarm Instrument
11 out of 5 Stars. 1 reviews
Smoke Alarm Detector Home Fire Safety Sensor Alert
Smoke Alarm Detector Home Fire Safety Sensor Alert
34.7 out of 5 Stars. 3 reviews
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Flash Deal Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $15.99 Was $27.99
Sponsored
Now$1599
current price Now $15.99, Was $27.99$27.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2464.3 out of 5 Stars. 246 reviews
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GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display $34.99
Sponsored
$3499
current price $34.99GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display
633.9 out of 5 Stars. 63 reviews
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PQWT L50 Plumber Tools Indoor Pipe Walls Floor Bathroom Kitchen Pipeline Leakage Water Leak Detector
PQWT L50 Plumber Tools Indoor Pipe Walls Floor Bathroom Kitchen Pipeline Leakage Water Leak Detector
50+ bought since yesterday Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included From $38.97
3 options
Available in additional 3 optionsFrom$3897
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
6224.5 out of 5 Stars. 622 reviews
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Flash Deal Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $15.99 Was $27.99
Now$1599
current price Now $15.99, Was $27.99$27.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2464.3 out of 5 Stars. 246 reviews
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SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack From $26.09
9 options
Available in additional 9 optionsFrom$2609
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack
4354.4 out of 5 Stars. 435 reviews
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Dleadar for Tuya smart for zigbee temperature and humidity detector sensor House From $19.84
3 options
Available in additional 3 optionsFrom$1984
Dleadar for Tuya smart for zigbee temperature and humidity detector sensor House
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector From $60.00
2 options
Available in additional 2 optionsFrom$6000
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
3784.2 out of 5 Stars. 378 reviews
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100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $18.99
2 options
Available in additional 2 optionsFrom$1899
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
6074.4 out of 5 Stars. 607 reviews
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Bitiwend, 16ft Black Motion Household Sensors & Alarms
Bitiwend, 16ft Black Motion Household Sensors & Alarms
724 out of 5 Stars. 72 reviews
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XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92
Sponsored
$3292
current price $32.92XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
154.4 out of 5 Stars. 15 reviews
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U.S. Solid Water Leak Detector Leakage Detection System, 1/2 inch Stainless Steel Valve, Controller, 3pcs Sensor $103.29
Sponsored
$10329
current price $103.29U.S. Solid Water Leak Detector Leakage Detection System, 1/2 inch Stainless Steel Valve, Controller, 3pcs Sensor
Spencer 120dB Water Leakage Leakage Detection Detector Sound Alarm Wired Sensor Siren Low Battery Flood Alert for Home Security, Basement, Floor $8.59
$859
current price $8.59Spencer 120dB Water Leakage Leakage Detection Detector Sound Alarm Wired Sensor Siren Low Battery Flood Alert for Home Security, Basement, Floor
15 out of 5 Stars. 1 reviews
Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation $10.99
$1099
current price $10.99Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation
PGST WiFi+GSM/4G Home Smart Alarm Security System Kit,DIY Wireless Burglar Alert System,Motion Detector,Remote Control,Door Window Sensor,Smart Life Tuya APP Control,NO Monthly Fees (PG105-A) From $69.99
5 options
Available in additional 5 optionsFrom$6999
PGST WiFi+GSM/4G Home Smart Alarm Security System Kit,DIY Wireless Burglar Alert System,Motion Detector,Remote Control,Door Window Sensor,Smart Life Tuya APP Control,NO Monthly Fees (PG105-A)
133.7 out of 5 Stars. 13 reviews
Best seller Aeotec Smart Home SmartThings
Aeotec Smart Home SmartThings
514.2 out of 5 Stars. 51 reviews
Upgraded Smart WiFi Motion Sensor Detector Alarm Indoor with Siren, Phone App, USB Power, Alert Recording, Scheduled Working Times - Infrared Motion Sensor Alarm for Home Garage $22.88
$2288
current price $22.88Upgraded Smart WiFi Motion Sensor Detector Alarm Indoor with Siren, Phone App, USB Power, Alert Recording, Scheduled Working Times - Infrared Motion Sensor Alarm for Home Garage
XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92
$3292
current price $32.92XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
154.4 out of 5 Stars. 15 reviews
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Smoke Alarm Detector From $13.39
From$1339
Smoke Alarm Detector
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Best seller eMACROS 1/2 Mile Long Range Solar Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor & Detector-Security Alert System From $29.99
From$2999
eMACROS 1/2 Mile Long Range Solar Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor & Detector-Security Alert System
3304.6 out of 5 Stars. 330 reviews
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Clearance DEXIMRO 5 IN 1 Stud Finder Wall Scanner, Enhanced Accuracy High Stability Electronic Detector for Wall Wood Metal Studs, Stud Sensor Beam Finders for Center & Edge of Wood AC Wire Metal Studs Joist $14.99 Was $19.05
Now$1499
current price Now $14.99, Was $19.05$19.05
DEXIMRO 5 IN 1 Stud Finder Wall Scanner, Enhanced Accuracy High Stability Electronic Detector for Wall Wood Metal Studs, Stud Sensor Beam Finders for Center & Edge of Wood AC Wire Metal Studs Joist
444.5 out of 5 Stars. 44 reviews
Iuhan Intelligent Door and Window Intrusion Detector Alarm, Home Door Magnetic Sensor Security Alarm, Wireless Entry Alert System for House Apartment Office Safety $9.99
$999
current price $9.99Iuhan Intelligent Door and Window Intrusion Detector Alarm, Home Door Magnetic Sensor Security Alarm, Wireless Entry Alert System for House Apartment Office Safety
eMACROS Wireless Driveway Alarm, Motion Sensor Alarm 500 FT Range Extra Loud Chimes Weatherproof Home Security Alarm System (Single Sensor) From $12.99
3 options
Available in additional 3 optionsFrom$1299
eMACROS Wireless Driveway Alarm, Motion Sensor Alarm 500 FT Range Extra Loud Chimes Weatherproof Home Security Alarm System (Single Sensor)
574.1 out of 5 Stars. 57 reviews
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Door WiFi Magnetic Detector Home Alarm System Window Detector Burglar Alarm System $16.55
$1655
current price $16.55Door WiFi Magnetic Detector Home Alarm System Window Detector Burglar Alarm System
Goodhd Infrared Alarm Sensor Motion Sensor Outdoor Wired Alarm Detector Home Security-Without Stand
Goodhd Infrared Alarm Sensor Motion Sensor Outdoor Wired Alarm Detector Home Security-Without Stand
ADT Blue Wireless Home Security System with Entry Sensors, Motion Detector, Pearl Gray, 8 Count $146.00
$14600
current price $146.00ADT Blue Wireless Home Security System with Entry Sensors, Motion Detector, Pearl Gray, 8 Count
25 out of 5 Stars. 2 reviews
Best seller Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
1104.1 out of 5 Stars. 110 reviews
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KDJ Window Vibration Alarm Sensor Ultra Slim 130dB Siren Glass Break Detector Home Security System Easy Installation No Wiring Required for Doors Windows From $6.21
2 options
Available in additional 2 optionsFrom$621
KDJ Window Vibration Alarm Sensor Ultra Slim 130dB Siren Glass Break Detector Home Security System Easy Installation No Wiring Required for Doors Windows
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88
2 options
Available in additional 2 optionsFrom$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
2104.5 out of 5 Stars. 210 reviews
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3Pcs Magnetic Door Sensor Alarm, Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation $22.99
$2299
current price $22.993Pcs Magnetic Door Sensor Alarm, Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation
Fosmon WaveLink 2x Wireless Motion Sensor Alarm Outdoor, Home Security System Alarm, 1x Plug In Receiver, Battery Operated Motion Detector Driveway Alarm, Door Chime For Indoor And Outdoor $29.99
$2999
current price $29.99Fosmon WaveLink 2x Wireless Motion Sensor Alarm Outdoor, Home Security System Alarm, 1x Plug In Receiver, Battery Operated Motion Detector Driveway Alarm, Door Chime For Indoor And Outdoor
154.3 out of 5 Stars. 15 reviews
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Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included From $29.22
2 options
Available in additional 2 optionsFrom$2922
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included
1094.4 out of 5 Stars. 109 reviews
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SOUJAMAO, 2, 500sq White Security Household Sensors & Alarms 17-Piece Kit $109.38
$10938
current price $109.38SOUJAMAO, 2, 500sq White Security Household Sensors & Alarms 17-Piece Kit
11 out of 5 Stars. 1 reviews
HTZSAFE, 1/2 Mile Outdoor Motion Sensor & Detector Household Sensors & Alarms $99.99
$9999
current price $99.99HTZSAFE, 1/2 Mile Outdoor Motion Sensor & Detector Household Sensors & Alarms
43.3 out of 5 Stars. 4 reviews
Wireless Door Window Burglar Sensor 4 Modes Alarm Door Open Detectors Freezers Clo G19489 $7.59
$759
current price $7.59Wireless Door Window Burglar Sensor 4 Modes Alarm Door Open Detectors Freezers Clo G19489
KF-90 House Portable Digital Ultraviolet Radiation Detector Ultraviolet UVI Meter Radiometer Tester Protective $24.76
$2476
current price $24.76KF-90 House Portable Digital Ultraviolet Radiation Detector Ultraviolet UVI Meter Radiometer Tester Protective
5Pcs Magnetic Door Sensor Alarm, Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation $34.99
$3499
current price $34.995Pcs Magnetic Door Sensor Alarm, Uscallm Home Security Alarm Magnetic Sensor Intelligent Door Window Intrusion Detector for House Apartment Office Smart Home Protection Wireless Easy Installation
GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display $34.99
$3499
current price $34.99GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display
633.9 out of 5 Stars. 63 reviews
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