Smoke & Gas Detectors | Surplus Network

Kidde Code One Smoke Detector, Battery Powered i9010

Kidde Code One Smoke Detector,...

$7.00 USD

Kidde Code One Smoke Detector,...

$7.00 USD

First Alert BRK 9120B Hardwired AC Powered Smoke Detector Alarm w/Battery Backup

First Alert BRK 9120B Hardwired AC...

$15.52 USD

First Alert BRK 9120B Hardwired AC...

$15.52 USD

2pcs 2packSmoke Detector 10 Year Battery, Fire Alarms Smoke Detectors Ultra Thin

2pcs 2packSmoke Detector 10 Year...

$15.99 USD

2pcs 2packSmoke Detector 10 Year...

$15.99 USD

First Alert Smoke Alarm Lithium Powercell Model 1039852 NEW P1210

First Alert Smoke Alarm Lithium...

$15.99 USD

First Alert Smoke Alarm Lithium...

$15.99 USD

First Alert SC9120B Combination Carbon Monoxide & Smoke Alarm AC Power Authentic

First Alert SC9120B Combination...

$399.99 USD

First Alert SC9120B Combination...

$399.99 USD

BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

BRK SCO2B Smoke and Carbon Monoxide...

$21.29 USD

BRK SCO2B Smoke and Carbon Monoxide...

$21.29 USD

BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

BRK SCO2B Smoke and Carbon Monoxide...

$21.29 USD

BRK SCO2B Smoke and Carbon Monoxide...

$21.29 USD

Airthings 2969 View Plus For Business CO2 Detector Air Quality Particle Monitor

Airthings 2969 View Plus For Business...

$49.00 USD

Airthings 2969 View Plus For Business...

$49.00 USD

Airthings Battery Operated Digital Radon Detector- Model 2350

Airthings Battery Operated Digital...

$59.95 USD

Airthings Battery Operated Digital...

$59.95 USD

First Alert FG250B Dual Ionization Smoke Alarm with 9-volt Battery

First Alert FG250B Dual Ionization...

$10.99 USD

First Alert FG250B Dual Ionization...

$10.99 USD

First Alert BRK SC9120B Combination Carbon Monoxide & Smoke Alarm AC Power

First Alert BRK SC9120B Combination...

$29.85 USD

First Alert BRK SC9120B Combination...

$29.85 USD

AirThings Wave Mini Air Quality Monitor - Bluetooth - Model 2920, Tested

AirThings Wave Mini Air Quality...

$19.95 USD

AirThings Wave Mini Air Quality...

$19.95 USD

Kidde KN-COSMXTR-B Combination and Carbon Monoxide Alarm - New Sealed

Kidde KN-COSMXTR-B Combination and...

$29.99 USD

Kidde KN-COSMXTR-B Combination and...

$29.99 USD

2-Pack Ecoey Digital Carbon Monoxide Detector Replaceable Battery CO Alarm

2-Pack Ecoey Digital Carbon Monoxide...

$29.99 USD

2-Pack Ecoey Digital Carbon Monoxide...

$29.99 USD

Kidde 120 V AC Talking Smoke & Carbon Monoxide Alarm with 10-Year Sealed...

Kidde 120 V AC Talking Smoke & Carbon...

$29.99 USD

Kidde 120 V AC Talking Smoke & Carbon...

$29.99 USD

KIDDE Hardwired Smoke & Carbon Monoxide Alarm 900-CUAR

KIDDE Hardwired Smoke & Carbon...

$29.99 USD

KIDDE Hardwired Smoke & Carbon...

$29.99 USD

KIDDE Firex Hardwired Smoke & Carbon Monoxide Detector Alarm 900-CUAR 21032250

KIDDE Firex Hardwired Smoke & Carbon...

$29.99 USD

KIDDE Firex Hardwired Smoke & Carbon...

$29.99 USD

Kidde Code One Smoke Detector, Battery Powered With Ionization Sensor - i9010

Kidde Code One Smoke Detector,...

$8.50 USD

Kidde Code One Smoke Detector,...

$8.50 USD

First Alert 9120B Smoke Detector & Alarm, AC Powered With Battery Backup

First Alert 9120B Smoke Detector &...

$16.99 USD

First Alert 9120B Smoke Detector &...

$16.99 USD

AIRTHINGS Digital Radon Detector Model 2350 ⚡️NEW⚡️

AIRTHINGS Digital Radon Detector...

$49.99 USD

AIRTHINGS Digital Radon Detector...

$49.99 USD

Combination Smoke and Carbon Monoxide Detector Fire Alarms with Built-in Battery

Combination Smoke and Carbon Monoxide...

$17.99 USD

Combination Smoke and Carbon Monoxide...

$17.99 USD

Kidde Nighthawk COEG-3 Explosive Gas & Carbon Monoxide Alarm Detector

Kidde Nighthawk COEG-3 Explosive Gas...

$24.99 USD

Kidde Nighthawk COEG-3 Explosive Gas...

$24.99 USD

LOT OF SIX KIDDE i12060A Smoke Alarm Electric Hardwired 120V Battery NEW CASE

LOT OF SIX KIDDE i12060A Smoke...

$37.29 USD

LOT OF SIX KIDDE i12060A Smoke...

$37.29 USD

Home Fire Alarm Smoke Detector Gas Sensor Fireangel Twin Pack with Batteries

Home Fire Alarm Smoke Detector Gas...

$9.59 USD

Home Fire Alarm Smoke Detector Gas...

$9.59 USD

KIDDE FIREX i9050 Battery-Powered Ionization Smoke Alarm 85dB NEW FREE SHIPPING

KIDDE FIREX i9050 Battery-Powered...

$13.99 USD

KIDDE FIREX i9050 Battery-Powered...

$13.99 USD

Universal Ionization Smoke and Fire Alarm SS-770-LR 9v Battery

Universal Ionization Smoke and Fire...

$13.99 USD

Universal Ionization Smoke and Fire...

$13.99 USD

Kidde 10-Year Sealed Lithium Battery-Operated Smoke Alarm

Kidde 10-Year Sealed Lithium...

$13.99 USD

Kidde 10-Year Sealed Lithium...

$13.99 USD

First Alert 9120B Smoke Detector & Alarm, AC Powered With Battery Backup

First Alert 9120B Smoke Detector &...

$13.00 USD

First Alert 9120B Smoke Detector &...

$13.00 USD

3-in-1 CO2 Detector Monitor, Indoor Air Quality Monitor with Real-Time CO2 PPM

3-in-1 CO2 Detector Monitor, Indoor...

$9.99 USD

3-in-1 CO2 Detector Monitor, Indoor...

$9.99 USD

1 Piece 1件装 Smoke Detector 10 Year Battery, Fire Alarms Smoke Detectors

1 Piece 1件装 Smoke Detector 10...

$9.99 USD

1 Piece 1件装 Smoke Detector 10...

$9.99 USD

Airthings Digital Radon Detector Battery Operated - NEW! Free Shipping

Airthings Digital Radon Detector...

$52.99 USD

Airthings Digital Radon Detector...

$52.99 USD

Safe-T-Alert by MTI Industries 35-742-BL Dual LP/CO Alarm - 12V, 35 Series Flush

Safe-T-Alert by MTI Industries...

$60.33 USD

Safe-T-Alert by MTI Industries...

$60.33 USD

Kidde Firex Battery Operated Smoke and Carbon Monoxide Detector 900-CUDR

Kidde Firex Battery Operated Smoke...

$27.95 USD

Kidde Firex Battery Operated Smoke...

$27.95 USD

Siterwell Smoke Detector Smoke Alarm Built-in 9v Battery Low Battery Reminder

Siterwell Smoke Detector Smoke Alarm...

$11.29 USD

Siterwell Smoke Detector Smoke Alarm...

$11.29 USD

Kidde Smoke Detector Hardwired and Front Battery Door - 6 Pack - i12060A *NEW*

Kidde Smoke Detector Hardwired and...

$39.99 USD

Kidde Smoke Detector Hardwired and...

$39.99 USD

Google Nest 06A S3000BWES Battery Protect Smoke Carbon Monoxide Alarm Used 2025

Google Nest 06A S3000BWES Battery...

$39.99 USD

Google Nest 06A S3000BWES Battery...

$39.99 USD

First Alert Smoke &Carbon Monoxide Alarm Voice Alerts White 1039871 Lithium Batt

First Alert Smoke &Carbon Monoxide...

$25.00 USD

First Alert Smoke &Carbon Monoxide...

$25.00 USD

First Alert 2-IN-1 Smoke & Carbon Monoxide Alarm Hardwired Replacement

First Alert 2-IN-1 Smoke & Carbon...

$25.00 USD

First Alert 2-IN-1 Smoke & Carbon...

$25.00 USD

First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery

First Alert BRK SCO2B Smoke and...

$21.51 USD

First Alert BRK SCO2B Smoke and...

$21.51 USD

First Alert Ionization Smoke Alarm, Battery Operated, SA303CN4, White, 1 Each

First Alert Ionization Smoke Alarm,...

$9.47 USD

First Alert Ionization Smoke Alarm,...

$9.47 USD

Kidde I4618 Hardwired Smoke Alarm with Battery Backup! NEWLY MANUFACTURED

Kidde I4618 Hardwired Smoke Alarm...

$20.15 USD

Kidde I4618 Hardwired Smoke Alarm...

$20.15 USD

SC9120B BRK Smoke & Carbon Monoxide Detector (Single)

SC9120B BRK Smoke & Carbon Monoxide...

$16.50 USD

SC9120B BRK Smoke & Carbon Monoxide...

$16.50 USD

2 Pack Kidde Smoke Alarm Detector with Voice, 10 Year Worry Free Sealed Battery

2 Pack Kidde Smoke Alarm Detector...

$40.00 USD

2 Pack Kidde Smoke Alarm Detector...

$40.00 USD

BRK SCO2B Smoke and Carbon Monoxide Detector with 9V Battery

BRK SCO2B Smoke and Carbon Monoxide ...

$21.36 USD

BRK SCO2B Smoke and Carbon Monoxide ...

$21.36 USD

Kidde Smoke Detector Battery Powered Ionization Sensor Smoke Alarm (6-Pack)

Kidde Smoke Detector Battery Powered...

$42.97 USD

Kidde Smoke Detector Battery Powered...

$42.97 USD

USI Electric Hardwired 2 in 1 Smoke & Fire Alarm Model Ml106S

USI Electric Hardwired 2 in 1 Smoke &...

$22.99 USD

USI Electric Hardwired 2 in 1 Smoke &...

$22.99 USD

Kidde Carbon Monoxide Detector Alarm KN-COPP-B-LPM

Kidde Carbon Monoxide Detector Alarm...

$21.99 USD

Kidde Carbon Monoxide Detector Alarm...

$21.99 USD

NEW Arrival SITERWELL Smoke Detector 10-Year Smoke Alarm UL Listed Free Shipping

NEW Arrival SITERWELL Smoke Detector...

$14.24 USD

NEW Arrival SITERWELL Smoke Detector...

$14.24 USD

Siterwell 10 Year Battery Smoke Detector Alarm home improvement Safety Alarm

Siterwell 10 Year Battery Smoke...

$14.24 USD

Siterwell 10 Year Battery Smoke...

$14.24 USD

First Alert EXPLOSIVE GAS & CARBON MONOXIDE Alarm - New! Damaged Package

First Alert EXPLOSIVE GAS & CARBON...

$19.99 USD

First Alert EXPLOSIVE GAS & CARBON...

$19.99 USD

Ecoey LCD Carbon Monoxide Detector Replaceable Battery Operated Free SHIPPING

Ecoey LCD Carbon Monoxide Detector...

$19.99 USD

Ecoey LCD Carbon Monoxide Detector...

$19.99 USD

First Alert 2-in-1 Smoke and Carbon Monoxide Alarm Model PC1210

First Alert 2-in-1 Smoke and Carbon...

$19.99 USD

First Alert 2-in-1 Smoke and Carbon...

$19.99 USD

Code One Smoke Detector, Battery Powered With Ionization Sensor

Code One Smoke Detector, Battery...

$8.60 USD

Code One Smoke Detector, Battery...

$8.60 USD

Lot 3 Pack Kidde Smoke Alarm Detector 10-Year Sealed Battery Ionization Sensor

Lot 3 Pack Kidde Smoke Alarm Detector...

$44.00 USD

Lot 3 Pack Kidde Smoke Alarm Detector...

$44.00 USD

Brand New Honeywell 5800SMOKEV,...

$69.49 USD

Brand New Honeywell 5800SMOKEV,...

$69.49 USD

Kidde/Firex 900-CUAR-V Carbon Monoxide Fire Smoke Voice Detector HARD WIRED New

Kidde/Firex 900-CUAR-V Carbon...

$35.99 USD

Kidde/Firex 900-CUAR-V Carbon...

$35.99 USD

DOMETIC by KIDDE 900-0140-LPM DIGITAL DISPLAY CARBON MONOXIDE ALARM *D21

DOMETIC by KIDDE 900-0140-LPM DIGITAL...

$18.25

DOMETIC by KIDDE 900-0140-LPM DIGITAL...

$18.25

BRK First Alert 6-Pack Contractor pack (Smoke & Carbon Monoxide Alarm) FREE SHIP

BRK First Alert 6-Pack Contractor...

$71.95 USD

BRK First Alert 6-Pack Contractor...

$71.95 USD

Siterwell LCD Digital Carbon Monoxide Alarm 10 Years Product Life CO Detector

Siterwell LCD Digital Carbon Monoxide...

$19.94 USD

Siterwell LCD Digital Carbon Monoxide...

$19.94 USD

FIRST ALERT Family Gard Smoke Fire Alarm Detector Security w/ 9v Battery FG200B

FIRST ALERT Family Gard Smoke Fire...

$10.49 USD

FIRST ALERT Family Gard Smoke Fire...

$10.49 USD

Siterwell Smoke Detector Alarm Fire Sentry Fast Ship Hot Sale with 9v Battery

Siterwell Smoke Detector Alarm Fire...

$11.69 USD

Siterwell Smoke Detector Alarm Fire...

$11.69 USD

Kidde/Firex 900-CUAR-V Carbon Monoxide Fire Smoke Voice Detector

Kidde/Firex 900-CUAR-V Carbon...

$29.50 USD

Kidde/Firex 900-CUAR-V Carbon...

$29.50 USD

2 Fire Sentry Model i9040 Ionization Smoke Alarms

2 Fire Sentry Model i9040 Ionization...

$4.00 USD

2 Fire Sentry Model i9040 Ionization...

$4.00 USD

Kidde Firex Smoke Detector Hardwired Battery Backup Front Load Door Alarm 4 Pack

Kidde Firex Smoke Detector Hardwired...

$55.00 USD

Kidde Firex Smoke Detector Hardwired...

$55.00 USD

Kidde Combo Alarm 900-CUDR-V smoke carbon monoxide BATTERY POWERED detector

Kidde Combo Alarm 900-CUDR-V smoke...

$30.00 USD

Kidde Combo Alarm 900-CUDR-V smoke...

$30.00 USD

First Alert Smoke Detector - White

First Alert Smoke Detector - White

$6.97 USD

First Alert Smoke Detector - White

$6.97 USD

Siterwell GS517 Smoke Detector & Alarm, AC Powered With Battery Backup FAST SHIP

Siterwell GS517 Smoke Detector &...

$15.29 USD

Siterwell GS517 Smoke Detector &...

$15.29 USD

Code One Battery Operated Smoke Detector With Ionization Sensor (6-Pack)

Code One Battery Operated Smoke...

$39.80 USD

Code One Battery Operated Smoke...

$39.80 USD

USI Household 2-in-1 Smoke and Fire Alarm 10 Year Tamper-Proof

USI Household 2-in-1 Smoke and Fire...

$18.00 USD

USI Household 2-in-1 Smoke and Fire...

$18.00 USD

AC Plug-In Carbon Monoxide Detector with Battery Backup,

AC Plug-In Carbon Monoxide Detector...

$22.89 USD

AC Plug-In Carbon Monoxide Detector...

$22.89 USD

Google Nest T5000SF Temperature Sensor Thermostat - White Open Box

Google Nest T5000SF Temperature...

$25.99 USD

Google Nest T5000SF Temperature...

$25.99 USD

American Sensors Long Life Smoke And Fire Alarm Sa900

American Sensors Long Life Smoke And...

$15.00 USD

American Sensors Long Life Smoke And...

$15.00 USD

Safe-T-Alert 30-442-P-WT White Flush Mount Propane Gas Alarm

Safe-T-Alert 30-442-P-WT White Flush...

$51.79

Safe-T-Alert 30-442-P-WT White Flush...

$51.79

Combination Smoke Carbon Monoxide Detector Fire Alarms With Built-in Battery US

Combination Smoke Carbon Monoxide...

$23.74 USD

Combination Smoke Carbon Monoxide...

$23.74 USD

First Alert 2pk CO400CN2 Battery Powered Carbon Monoxide Detector

First Alert 2pk CO400CN2 Battery...

$23.99 USD

First Alert 2pk CO400CN2 Battery...

$23.99 USD

First Alert SC7010BPVCN Hardwired Smoke & Carbon Monoxide Detector with Voice

First Alert SC7010BPVCN Hardwired...

$26.99 USD

First Alert SC7010BPVCN Hardwired...

$26.99 USD

2GIG Smoke / Heat / Freeze Wireless Alarm Detector (#2GIG-SMKT3-345)

2GIG Smoke / Heat / Freeze Wireless...

$26.99 USD

2GIG Smoke / Heat / Freeze Wireless...

$26.99 USD

Vintage 70s GE Compact Electric Smoke Alarm 8201-2

Vintage 70s GE Compact Electric Smoke...

$50.00 USD

Vintage 70s GE Compact Electric Smoke...

$50.00 USD

2 x NEW SITERWELL LCD Digital Carbon Monoxide (CO) Detector Alarm 10 Year Life

2 x NEW SITERWELL LCD Digital Carbon...

$32.48 USD

2 x NEW SITERWELL LCD Digital Carbon...

$32.48 USD

New and Sealed First Alert 2 in 1 Smoke & Carbon Monoxide Alarm 1044807 Z-Wave

New and Sealed First Alert 2 in 1...

$27.99 USD

New and Sealed First Alert 2 in 1...

$27.99 USD

First Alert BRK SC7010BV Talking Photoelectric Smoke and Carbon Monoxide Alarm

First Alert BRK SC7010BV Talking...

$25.49 USD

First Alert BRK SC7010BV Talking...

$25.49 USD

Safe T Alert 20-441-P-BL Mini Hard-Wired Propane/LP Gas Alarm - 12V, 20 Series,

Safe T Alert 20-441-P-BL Mini...

$33.25 USD

Safe T Alert 20-441-P-BL Mini...

$33.25 USD

Brand New DSC WS4936 Wireless...

$69.99 USD

Brand New DSC WS4936 Wireless...

$69.99 USD

AirThings Wave Mini Air Quality Monitor - Bluetooth - Model 2928 - NEW

AirThings Wave Mini Air Quality...

$26.33 USD

AirThings Wave Mini Air Quality...

$26.33 USD

First Alert 2 in 1 Smoke & Carbon Monoxide Alarms Pack of 2

First Alert 2 in 1 Smoke & Carbon...

$39.95 USD

First Alert 2 in 1 Smoke & Carbon...

$39.95 USD

2 x Siterwell Sealed Battery LCD Carbon Monoxide Detector CO Alarm 10 Year Life

2 x Siterwell Sealed Battery LCD...

$33.24 USD

2 x Siterwell Sealed Battery LCD...

$33.24 USD

NEW Ionization Smoke Detector Battery Powered, Home Fire Alarm And Safety Sensor

NEW Ionization Smoke Detector Battery...

$8.99 USD

NEW Ionization Smoke Detector Battery...

$8.99 USD

2x Siterwell Fire Sentry Smoke Detector Alarm Runs on 9 Volt Battery from Gitway

2x Siterwell Fire Sentry Smoke...

$16.43 USD

2x Siterwell Fire Sentry Smoke...

$16.43 USD

Smoke Alarm, Battery Operated Photo Sensor

Smoke Alarm, Battery Operated Photo...

$14.53 USD

Smoke Alarm, Battery Operated Photo...

$14.53 USD

BRK First Alert 6-Pack Contractor pack (Smoke & Carbon Monoxide Alarm) FREE SHIP

BRK First Alert 6-Pack Contractor...

$94.95 USD

BRK First Alert 6-Pack Contractor...

$94.95 USD

Nest Protect Smoke and Carbon Monoxide Alarm 1st Generation 05C

Nest Protect Smoke and Carbon...

$59.99 USD

Nest Protect Smoke and Carbon...

$59.99 USD

First Alert Z-Wave Smoke & Carbon Monoxide Detector Works with Ring

First Alert Z-Wave Smoke & Carbon...

$28.95 USD

First Alert Z-Wave Smoke & Carbon...

$28.95 USD

Kidde Smoke Alarms 1276

Kidde Smoke Alarms 1276

$17.28 USD

Kidde Smoke Alarms 1276

$17.28 USD

Qolsys IQ Wireless Carbon Monoxide Detector (QS5110-840)

Qolsys IQ Wireless Carbon Monoxide...

$59.00 USD

Qolsys IQ Wireless Carbon Monoxide...

$59.00 USD

One Smoke Detector, Battery Powered with Ionization Sensor Alarm 9-volt New

One Smoke Detector, Battery Powered...

$11.98 USD

One Smoke Detector, Battery Powered...

$11.98 USD

First Alert BRK 9120B Hardwired AC Powered Smoke Detector Alarm w/Battery Backup

First Alert BRK 9120B Hardwired AC...

$15.95 USD

First Alert BRK 9120B Hardwired AC...

$15.95 USD

Siterwell GS528A Smoke Alarm with 9-Volt Battery Photoelectric 1 DAY SHIPPING

Siterwell GS528A Smoke Alarm with...

$11.39 USD

Siterwell GS528A Smoke Alarm with...

$11.39 USD

New In Box First Alert Carbon Monoxide Plug-In Alarm with Battery

New In Box First Alert Carbon...

$11.50 USD

New In Box First Alert Carbon...

$11.50 USD

First Alert SC 9120B Hardwired Smoke & Carbon Monoxide Alarm

First Alert SC 9120B Hardwired Smoke...

$19.46 USD

First Alert SC 9120B Hardwired Smoke...

$19.46 USD

10 Year Kidde Worry-Free Multi Sensor Combination Smoke & Carbon Monoxide Alarm

10 Year Kidde Worry-Free Multi Sensor...

$31.49 USD

10 Year Kidde Worry-Free Multi Sensor...

$31.49 USD