Flame Detector(52)
Uses item details. Price when purchased online
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $69.88 $34.94/ea

Sponsored
$6988
current price $69.88$34.94/ea
From $34.94
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1284.2 out of 5 Stars. 128 reviews
SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm with Magnetic Fastening Kit, Smoke Alarm with Photoelectric Sensor and Low Battery Warning Function for House, ETL-9th Listed, GS509A, 5 Pack From $19.52

Sponsored
From$1952
SITERWELL Smoke Detector, 10 Year Product Life Fire Alarm with Magnetic Fastening Kit, Smoke Alarm with Photoelectric Sensor and Low Battery Warning Function for House, ETL-9th Listed, GS509A, 5 Pack
5814.4 out of 5 Stars. 581 reviews
Best seller Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included) $37.99

Sponsored
$3799
current price $37.99Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)
134.1 out of 5 Stars. 13 reviews
100+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included From $19.88

Sponsored
From$1988
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-Inch, Batteries Included
8564.5 out of 5 Stars. 856 reviews
Shelly Gas CNG detector | Wi-Fi Smart Gas Sensor with Sound and Light Alarm | Certified | Flame Resistant | Wire-free | Scene Activation | iOS & Android App

Shelly Gas CNG detector | Wi-Fi Smart Gas Sensor with Sound and Light Alarm | Certified | Flame Resistant | Wire-free | Scene Activation | iOS & Android App
64.7 out of 5 Stars. 6 reviews
Clearance Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up $8.39 Was $27.97

Now$839
current price Now $8.39, Was $27.97$27.97
Universal Security Instruments Hardwire Smoke & Fire Alarm, with Battery Back-up
25 out of 5 Stars. 2 reviews
GARRISON FLAME SENSOR KIT $32.88

$3288
current price $32.88GARRISON FLAME SENSOR KIT
Mobutofu High Precision Flame or for Gas Furnace Burner with Quick Response $11.55

$1155
current price $11.55Mobutofu High Precision Flame or for Gas Furnace Burner with Quick Response
6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black From $22.39
From$2239
6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
LENNOX 17J56 Flame Sensor $39.70

$3970
current price $39.70LENNOX 17J56 Flame Sensor
Best seller 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 $17.99 Was $31.99

Sponsored
Now$1799
current price Now $17.99, Was $31.99$31.99
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
2914.3 out of 5 Stars. 291 reviews
50+ bought since yesterday Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack From $36.88

Sponsored
From$3688
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 4-inch, Batteries Included, 2 Pack
3094.6 out of 5 Stars. 309 reviews
High Volumes 120dB Emergencies Alarm Systems with Mounting Flame-resist Not Theft Defense for Indoor Security $12.31

$1231
current price $12.31High Volumes 120dB Emergencies Alarm Systems with Mounting Flame-resist Not Theft Defense for Indoor Security
Shockproof 220V Alarm 120dB Flame-Resist Anti-Theft for Indoor/Outdoor $9.92

$992
current price $9.92Shockproof 220V Alarm 120dB Flame-Resist Anti-Theft for Indoor/Outdoor
Estrotect Heat Detector w/Bullseye $79.99

$7999
current price $79.99Estrotect Heat Detector w/Bullseye
15 out of 5 Stars. 1 reviews
Fireboy-Xintex Propane Fume Detector w/Plastic Sensor Solenoid Val... [P-1BS-R] $362.23
![Fireboy-Xintex Propane Fume Detector w/Plastic Sensor Solenoid Val... [P-1BS-R]](https://i5.walmartimages.com/seo/Fireboy-Xintex-Propane-Fume-Detector-w-Plastic-Sensor-Solenoid-Valve-Black-Bezel-Display_d7ee07c9-7716-4da3-90c4-e0bf8db29c98_1.5d027f8bd2e5b2437c63bab28c3b2406.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$36223
current price $362.23Fireboy-Xintex Propane Fume Detector w/Plastic Sensor Solenoid Val... [P-1BS-R]
Flame Sensor,Heating Equipment,LP/NG FLS201 $21.39

$2139
current price $21.39Flame Sensor,Heating Equipment,LP/NG FLS201
Neuco Flame Sensor, 23543-01 $22.86

$2286
current price $22.86Neuco Flame Sensor, 23543-01
Universal Security Instruments, Sensing Plus, Combo Smoke, Fire, and Carbon Monoxide Alarm, Multi-Criteria, with 10-Year Battery $58.00

$5800
current price $58.00Universal Security Instruments, Sensing Plus, Combo Smoke, Fire, and Carbon Monoxide Alarm, Multi-Criteria, with 10-Year Battery
244.4 out of 5 Stars. 24 reviews
Universal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup $7.20 Was $44.97

Now$720
current price Now $7.20, Was $44.97$44.97
Universal Security Instruments Hardwire Smoke & Fire Alarm, with 10-Year Battery Backup
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch From $34.84

Sponsored
From$3484
Kidde Hardwired Photoelectric Smoke Detector Alarm, AA Battery Backup, 5-inch
1673.8 out of 5 Stars. 167 reviews
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack From $65.00

Sponsored
From$6500
Kidde 10-Year Sealed Lithium Battery-Operated Photoelectric Smoke Detector Alarm, 5-Inch, 2 Pack
1533.6 out of 5 Stars. 153 reviews
Clearance Universal Security Instruments Battery, Smoke & Fire Alarm $8.98 Was $17.97

Now$898
current price Now $8.98, Was $17.97$17.97
Universal Security Instruments Battery, Smoke & Fire Alarm
154.4 out of 5 Stars. 15 reviews
TripleHBB 6-in-1 Combustible Gas Detector,Gas Detector 6 in 1 CO Smoke Combustible Alarm Plug In with LCD Display for Home RV Camping From $31.85
From$3185
TripleHBB 6-in-1 Combustible Gas Detector,Gas Detector 6 in 1 CO Smoke Combustible Alarm Plug In with LCD Display for Home RV Camping
Fireboy G-1BB-R 1-Channel Gasoline Fume Detector with Sensor & 10 Amp Relay to Start Blower $351.70

$35170
current price $351.70Fireboy G-1BB-R 1-Channel Gasoline Fume Detector with Sensor & 10 Amp Relay to Start Blower
Fireboy-Xintex Gasoline Fume Detector w/Blower Control - Chrome Bez... [G-1CB-R] $351.99
![Fireboy-Xintex Gasoline Fume Detector w/Blower Control - Chrome Bez... [G-1CB-R]](https://i5.walmartimages.com/seo/Fireboy-Xintex-Gasoline-Fume-Detector-w-Blower-Control-Chrome-Bezel-12V_c8ca4be0-04eb-454a-a0a4-3a4d79d6cb04_1.04cae87eeb0aff1a8c32124e52aa474a.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$35199
current price $351.99Fireboy-Xintex Gasoline Fume Detector w/Blower Control - Chrome Bez... [G-1CB-R]
Clearance Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm $14.98 Was $29.98

Now$1498
current price Now $14.98, Was $29.98$29.98
Universal Security Instruments 10-Year Battery, Smoke & Fire Alarm
35 out of 5 Stars. 3 reviews
DETECTOR CAD CELL FLAME (Pack of 1) $51.70

$5170
current price $51.70DETECTOR CAD CELL FLAME (Pack of 1)
Honeywell C7027A1114 Flame Sensor Ultraviolet Mini Peeper $318.32

$31832
current price $318.32Honeywell C7027A1114 Flame Sensor Ultraviolet Mini Peeper
GN807 Combustible Gas Detector of Detection Various Flammable Gases Sound And Light Alarm 50~10000PPM Methane Detection $152.08

$15208
current price $152.08GN807 Combustible Gas Detector of Detection Various Flammable Gases Sound And Light Alarm 50~10000PPM Methane Detection
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack From $57.00

Sponsored
From$5700
Kidde Battery-Operated Photoelectric Smoke Detector Alarm, 5-inch, Batteries Included, 2 Pack
784.5 out of 5 Stars. 78 reviews
Natural Gas Detector, Digital Sound Warning Gas Detector, LCD/LPG/LNG Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $22.99 Was $26.89

Sponsored
Now$2299
current price Now $22.99, Was $26.89$26.89
Natural Gas Detector, Digital Sound Warning Gas Detector, LCD/LPG/LNG Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
24.5 out of 5 Stars. 2 reviews
3-in-1 Smoke and C0 Detector 10-Year Battery-Powered Heat Alarm with Clear LCD Display and Sound Warning for Home Reliable Detector for Enhanced Safety and Protection (Includes Batteries) $27.99

$2799
current price $27.993-in-1 Smoke and C0 Detector 10-Year Battery-Powered Heat Alarm with Clear LCD Display and Sound Warning for Home Reliable Detector for Enhanced Safety and Protection (Includes Batteries)
Plug-in 4-in-1 Combustible Gas Leak Sensor with Digital Display, Voice Alarm & Real-Time Temp/Humidity Monitor for Home, Kitchen, RV(Whie)
Plug-in 4-in-1 Combustible Gas Leak Sensor with Digital Display, Voice Alarm & Real-Time Temp/Humidity Monitor for Home, Kitchen, RV(Whie)
Diversitech Packard Aluminum/Ceramic Flame Sensor $32.12

$3212
current price $32.12Diversitech Packard Aluminum/Ceramic Flame Sensor
Robertshaw Flame Sensor, Straight,Universal Bracket 1751-729 $51.94 Was $57.99

Now$5194
current price Now $51.94, Was $57.99$57.99
Robertshaw Flame Sensor, Straight,Universal Bracket 1751-729
Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup From $34.94

2 options
Available in additional 2 optionsFrom$3494
Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1284.2 out of 5 Stars. 128 reviews
3 Pack Gas Detector with LCD Display, Battery Operated Detector UL Certified $44.00

$4400
current price $44.003 Pack Gas Detector with LCD Display, Battery Operated Detector UL Certified
Upgrades Flame-resist Not Theft Security Alarm 220V High Decibel 120dB Alarm For Indoor Outdoor Emergencies Alert $11.20

$1120
current price $11.20Upgrades Flame-resist Not Theft Security Alarm 220V High Decibel 120dB Alarm For Indoor Outdoor Emergencies Alert
(Price/Each)White-Rodgers 3046-5 Mercury Flame Sensor 42" W/Case $349.91

$34991
current price $349.91(Price/Each)White-Rodgers 3046-5 Mercury Flame Sensor 42" W/Case
Shelly Wi-Fi Gas Sensor (Gas LPG) $69.99

$6999
current price $69.99Shelly Wi-Fi Gas Sensor (Gas LPG)
11 out of 5 Stars. 1 reviews
Jb Industries Combustible Gas Detector,Alarm LDC-4000 $438.19

$43819
current price $438.19Jb Industries Combustible Gas Detector,Alarm LDC-4000
LOLIPPYY 2Pcs Gas Appliance Thermocouple with Flame Sensor for Home Safety Control Beige $9.69

$969
current price $9.69LOLIPPYY 2Pcs Gas Appliance Thermocouple with Flame Sensor for Home Safety Control Beige
Combustible Gas Detector, 32 to 104F 725A $119.89

$11989
current price $119.89Combustible Gas Detector, 32 to 104F 725A
15 out of 5 Stars. 1 reviews
USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels $99.99

$9999
current price $99.99USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels
474.3 out of 5 Stars. 47 reviews
NEW Forney IDD-II D-38252-01 Flame Detector Amplifier 38253-01 PLC IDD-2 IDDII $811.24

$81124
current price $811.24NEW Forney IDD-II D-38252-01 Flame Detector Amplifier 38253-01 PLC IDD-2 IDDII
Portable Flammable Gas Detector Detects CH4 Methane Concentration 0-100%Vol Alarm Diffuser

Portable Flammable Gas Detector Detects CH4 Methane Concentration 0-100%Vol Alarm Diffuser
Industry Home Gas Leak Detector CH4/Natural/coal Gas Flammable Combustible Gas Detector Analyzer 4 Alarm Methods From $99.91
From$9991
Industry Home Gas Leak Detector CH4/Natural/coal Gas Flammable Combustible Gas Detector Analyzer 4 Alarm Methods
BQBQERT Expandable 220V Magnetic Alarm Systems 120dB Alarm with Not Theft Flame-resist Designing For Apartment Commercial Use $7.90

$790
current price $7.90BQBQERT Expandable 220V Magnetic Alarm Systems 120dB Alarm with Not Theft Flame-resist Designing For Apartment Commercial Use
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