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    Best Seller
    M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    Click here for additional savings!

    The Universal Security Instruments Electric MCND401B Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household... more

    $33.37

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    Universal Security Instruments MIC1509S Hardwired 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarrm with 10 Year Sealed Battery Backup

    Universal Security Instruments MIC1509S Hardwired 3-in-1 Universal Smoke Sensing & Carbon Monoxide Combination Alarrm with 10 Year Sealed Battery Backup

    When it comes to your family's safety, there's no room for second guessing. The USI Electric 3-in-1 Smoke and Fire + Carbon Monoxide Alarm with 10 Year Lithium-Free Sealed Battery uses Smart Alarm Technology so you can be safe. Universal Smoke Sensing... more

    $36.88

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    Best Seller
    Universal Security Instruments USI Hallway 10 Year Tamper Proof Permanent Power Sealed Battery 2-in-1 Photoelectric Smoke & Carbon Monoxide Smart Alarm (MPC322SB)

    Universal Security Instruments USI Hallway 10 Year Tamper Proof Permanent Power Sealed Battery 2-in-1 Photoelectric Smoke & Carbon Monoxide Smart Alarm (MPC322SB)

    Nothing is more important than the safety of your family. The Universal Security Instruments MP316SB Photoelectric Smoke and Fire Alarm provides 10 years of continuous protection against deadly threats. Universal Security Instruments are the only... more

    $58.31

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    Universal Security Instruments MI3050SB 2-in-1 Smoke and Fire Smart Alarm with 10 Year Sealed Battery

    Universal Security Instruments MI3050SB 2-in-1 Smoke and Fire Smart Alarm with 10 Year Sealed Battery

    Nothing is more important than the safety of your family. The Universal Security Instruments MI3050SB 2-in-1 Smoke and Fire Smart Alarm provides 10 years of continuous protection against deadly threats in the home.. Universal Security Instruments are... more

    $27.85

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    Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

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    The Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm provides 10 years of continuous protection against the silent killer - carbon monoxide. Perfect for new or replacement installations, this maintenance-free alarm is suitable for... more

    $21.28

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    M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    Click here for additional savings!

    The Universal Security Instruments Electric MCN400B Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household... more

    $25.77

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    Universal Security Instruments MDS107 2-in-1 IoPhic Universal Smoke and Fire Smart Alarm

    Universal Security Instruments MDS107 2-in-1 IoPhic Universal Smoke and Fire Smart Alarm

    Don't let emergencies sneak up on you with the Universal Security Instruments MDS107 2-in-1 IoPhic Smoke and Fire Alarm. It is a necessary component for home safety. Use the Universal smoke alarm to keep your family and friends safe. It is made of... more

    $59.40 $26.42

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    Universal Security Instruments MDS300B IoPhic Smoke and Fire Smart Alarm

    Universal Security Instruments MDS300B IoPhic Smoke and Fire Smart Alarm

    Keep family members, friends and pets safe with the Universal Security Instruments MDS300B IoPhic Smoke and Fire Alarm. It is made of sturdy plastic and comes in a neutral white finish. Place this home smoke alarm between bedrooms, at entryways, the... more

    $58.70 $19.02

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    Universal Carbon Monoxide Alarm

    Universal Carbon Monoxide Alarm

    2-in-1 Plug-In Carbon Monoxide + Natural Gas Alarm | Display Screen | Smart Alarm more

    $40.99

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    Iophic Smoke Detector 120V Ac/Dc

    Iophic Smoke Detector 120V Ac/Dc

    Keep your family safe with the Universal Security Instruments MDSCN111 4-in-1. It keeps those emergencies from sneaking up on you. Made from plastic and white in color, it blends with typical home decor. This carbon monoxide detector is also designed... more

    $95.94 $39.85

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    Carbon Monoxide | 10 Year Permanent Power Sealed Battery | Smart Alarm

    Carbon Monoxide | 10 Year Permanent Power Sealed Battery | Smart Alarm

    Carbon Monoxide | 10 Year Permanent Power Sealed Battery | Smart Alarm more

    $38.99

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    Carbon Monoxide Alarm

    Carbon Monoxide Alarm

    3-in-1 Ionization Smoke + Carbon Monoxide + Natural Gas | Hardwired | Smart Alarm more

    $56.99

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    Universal Security Instruments MDS300B IoPhic Smoke (Grey) and Fire Smart Alarm

    Universal Security Instruments MDS300B IoPhic Smoke (Grey) and Fire Smart Alarm

    Keep family members, friends and pets safe with the Universal Security Instruments MDS300B IoPhic Smoke and Fire Alarm. It is made of sturdy plastic and comes in a neutral white finish. Place this home smoke alarm between bedrooms, at entryways, the... more

    $12.84

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    Universal Security Instruments MICN109 3-in-1 IoPhic Smoke, Carbon Monoxide and Natural Gas Smart Alarm, Multicolor

    Universal Security Instruments MICN109 3-in-1 IoPhic Smoke, Carbon Monoxide and Natural Gas Smart Alarm, Multicolor

    Don't let emergencies sneak up on you, every home needs a smoke and carbon monoxide detector. Keep your family and friends safe with this preventative IoPhic Smoke, Carbon Monoxide and Natural Gas Smart Alarm. Size: Pack 1. Color: Multicolor. Gender:... more

    $60.47

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    Universal?? Security Instruments, Inc. Smoke & Fire Alarm Value Pack 3 pc Pack, White

    Universal?? Security Instruments, Inc. Smoke & Fire Alarm Value Pack 3 pc Pack, White

    While we all hope for the best, it???s important to be prepared for the worst. Make your home a safer place with the Universal 3 Piece Value Pack General Purpose Smoke & Fire Alarm. This reliable alarm sounds an 85 decibel warning when smoke or fire is... more

    $12.14

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    Universal Security Instruments SS-901-2C/3CC Battery-Operated Photoelectric Smoke and Fire Alarm 2-Pack

    Universal Security Instruments SS-901-2C/3CC Battery-Operated Photoelectric Smoke and Fire Alarm 2-Pack

    This alarm is home safety made easy. The Platinum Series Universal Photoelectric Smoke & Fire Alarm 2-Pack has the features you need to protect your home from fire hazards without the hassle of wiring. The alarm has a fast and easy install with the... more

    $20.99

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    Universal Security Instruments MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    Universal Security Instruments MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

    Carbon monoxide and natural gas leaks are a silent, invisible threat to you and your family. This 2-in1 Carbon Monoxide & Natural Gas Alarm protects your home with a dual sensing alarm and Smart Alarm technology that reduces the occurrence of nuisance... more

    $33.99

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    Photoelectric Smoke and Fire Smart Alarm with 10-Year Sealed Battery

    Photoelectric Smoke and Fire Smart Alarm with 10-Year Sealed Battery

    Click here for additional savings!

    The Universal Security Instruments MPL316S Photoelectric Smoke and Fire Smart Alarm provides 10 years of continuous protection against deadly threats in the home. The photoelectric technology responds quickly to slow-smoldering fires to protect your... more

    $17.98

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    2-in-1 Smoke and Fire Smart Alarm with 10-Year Sealed Battery

    2-in-1 Smoke and Fire Smart Alarm with 10-Year Sealed Battery

    Click here for additional savings!

    The Universal Security Instruments MDSK300S 2-in-1 Smoke and Fire Smart Alarm provides 10 years of continuous protection against deadly threats in the home. New patented Universal Smoke Sensing Technology with Rate-of-Rise feature provides the benefits... more

    $17.88

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    USI Living Area 10 Year Tamper Proof Permanent Power Sealed Battery Photoelectric Smoke & Fire Smart Alarm (MP316SB)

    USI Living Area 10 Year Tamper Proof Permanent Power Sealed Battery Photoelectric Smoke & Fire Smart Alarm (MP316SB)

    Nothing is more important than the safety of your family. The Universal Security Instruments MP316SB Photoelectric Smoke and Fire Alarm provides 10 years of continuous protection against deadly threats. Universal Security Instruments are the only... more

    $27.00

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    USI Electric USI-960 Relay Module for Smoke and Fire Alarms

    USI Electric USI-960 Relay Module for Smoke and Fire Alarms

    Stay in control with this USI Relay Module. This module is UL listed as an accessory for use only with USI Electric and Universal Smoke Alarms and Heat Alarms. It has "Form C Dry Contacts" only and does not supply 120 Volts to the load. It can be used... more

    $21.98

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    Hardwired 2-in-1 Smoke and Fire Smart Alarm with 10-Year Sealed Battery Backup

    Hardwired 2-in-1 Smoke and Fire Smart Alarm with 10-Year Sealed Battery Backup

    Click here for additional savings!

    The Universal Security Instruments MI106S Hardwired 2-in-1 Smoke and Fire Smart Alarm provides 10 years of continuous protection against deadly threats in the home. New patented Universal Smoke Sensing Technology provides the benefits of both... more

    $18.48

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    3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    Click here for additional savings!

    The Universal Security Instruments MIC3510SB 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10 years of continuous protection against deadly threats in the home. New patented Universal Smoke Sensing Technology provides the benefits of both... more

    $34.48

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    3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm with 10-Year Sealed Battery

    3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm with 10-Year Sealed Battery

    Click here for additional savings!

    The Universal Security Instruments MIC1509S 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10 years of continuous protection against deadly threats in the home. New patented Universal Smoke Sensing Technology provides the benefits of both... more

    $36.88

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    MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup, 3in1 Operated WiredIn Smoke Security piano 9Volt.., By Universal Security Instruments

    MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup, 3in1 Operated WiredIn Smoke Security piano 9Volt.., By Universal Security Instruments

    Welcome to BigWorld. The USI Electric MCN400B Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household threats:... more

    $45.39

    FREE shipping

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    Universal Security Instruments 5304L Hardwired Ionization Smoke and Fire Alarm with 10-Year Lithium Battery

    Universal Security Instruments 5304L Hardwired Ionization Smoke and Fire Alarm with 10-Year Lithium Battery

    Ionization Smoke and Fire Alarm120 Volt AC Wired-In9 Volt Battery BackupLong Life Lithium Battery IncludedLoud 85 db AlarmImproved Nuisance Alarm ResistanceQuick Draw Battery DrawerTest/Silence ButtonPower and Alarm LED's2 Tamper Resistant Locking... more

    $24.47

    FREE shipping

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    Universal Security Instruments MI3050 Fire and Smoke Smart Alarm

    Universal Security Instruments MI3050 Fire and Smoke Smart Alarm

    The Universal Security Instruments MI3050 Battery-Operated Ionization Smoke and Fire Alarm responds quickly to fast-flaming fires to protect your family against deadly threats in the home. This alarm is operated by a nine-volt alkaline battery... more

    $18.90

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    MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup, 3in1 Operated WiredIn Smoke Security piano 9Volt.., By Universal Security Instruments

    MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup, 3in1 Operated WiredIn Smoke Security piano 9Volt.., By Universal Security Instruments

    Welcome to BigWorld. The USI Electric MCN400B Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household threats:... more

    $45.39

    FREE shipping

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    2-in-1 U.S.S.T. Smoke + Fire | 10 Year Permanent Power | Smart Alarm

    2-in-1 U.S.S.T. Smoke + Fire | 10 Year Permanent Power | Smart Alarm

    2-in-1 U.S.S.T. Smoke + Fire | 10 Year Permanent Power | Smart Alarm more

    $26.98

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    3-in-1 Smoke, Fire, and Carbon Monoxide Smart Alarm With 10 Year Sealed Battery,

    3-in-1 Smoke, Fire, and Carbon Monoxide Smart Alarm With 10 Year Sealed Battery,

    The Universal Security Instruments MIC3510SB 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10 years of continuous protection against deadly threats in the home. New patented Universal Smoke Sensing Technology provides the benefits of both... more

    $37.99

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    U.S.S.T Smoke, Fire, Carbon Monoxide and Natural Gas Smart Alarm

    U.S.S.T Smoke, Fire, Carbon Monoxide and Natural Gas Smart Alarm

    4-in-1 U.S.S.T Smoke + Fire + Carbon Monoxide + Natural Gas | Hardwired | Smart Alarm more

    $54.99

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    2-in-1 U.S.S.T. Smoke + Fire | Hardwired +10 Year Permanent Power | Smart Alarm

    2-in-1 U.S.S.T. Smoke + Fire | Hardwired +10 Year Permanent Power | Smart Alarm

    2-in-1 U.S.S.T. Smoke + Fire | Hardwired + 10 Year Permanent Power Backup | Smart Alarm more

    $27.98

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    Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup (MCND401B)

    Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup (MCND401B)

    2-in-1 Carbon Monoxide and Natural Gas Alarm120-Volt AC Plug-In Alarm with Battery Back-UpBack-up Battery Continues protection in the event of a power outage9-Volt Energizer Alkaline Battery IncludedDigital Display Screen with Three LED Colors... more

    $42.47

    FREE shipping

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    Universal Security Instruments 976LR 9V Smoke and Fire Alarm with Quick Change Battery Installation

    Universal Security Instruments 976LR 9V Smoke and Fire Alarm with Quick Change Battery Installation

    The Universal Security Instruments 976LR Battery-Operated Ionization Smoke and Fire Alarm responds quickly to fast-flaming fires to protect your family against deadly threats in the home. This alarm is operated by a nine-volt super heavy-duty battery... more

    $12.00

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    Smoke Alarm Universal Security Instruments 1204 Wire-In with Battery Backup 2 Pack

    Smoke Alarm Universal Security Instruments 1204 Wire-In with Battery Backup 2 Pack

    World and Main carries a full assortment of plumbing parts and fixtures to meet every project need and retail price point. To make shopping easier for your customer, and stocking shelves a breeze, every repair part is color-coded and each retail pack... more

    $29.99

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    Universal Security Instruments SS-770-6CC Ionization Fire and Smoke Alarm, Mini, 6pk Bulk Pack

    Universal Security Instruments SS-770-6CC Ionization Fire and Smoke Alarm, Mini, 6pk Bulk Pack

    The Universal Security Instruments SS-770-6CC Battery-Operated Ionization Smoke and Fire Alarms respond quickly to fast-flaming fires to protect your family against deadly threats in the home. These alarms come in a bulk pack of six and are operated by... more

    $38.97 $35.45

    FREE shipping

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    Universal Security Instruments Battery-Operated Universal Smoke Sensing Smoke and Fire Alarm (MDS300B)

    Universal Security Instruments Battery-Operated Universal Smoke Sensing Smoke and Fire Alarm (MDS300B)

    Universal Smoke Sensing Smoke and Fire AlarmResponds 87% Faster to Slow Smoldering FiresResponds Quickest to Fast Flaming Fires9V Alkaline Battery Operated10-Year Long Life Battery IncludedContinued Protection in case of Power OutageNuisance Alarm... more

    $22.73

    FREE shipping

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    Universal Security Instruments MP308 Photoelectric Smoke and Fire Smart Alarm

    Universal Security Instruments MP308 Photoelectric Smoke and Fire Smart Alarm

    Keep your family safe with a Smart Universal Security Instruments MP308 Smoke and Fire Alarm. It runs on one 9V battery (included) so you can install it just about anywhere without the need for wiring. This photoelectric smoke alarm features auto... more

    $22.97 $12.14

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    Universal® Security Instruments, Inc. Smoke & Fire Alarm Value Pack 3 pc Pack

    Universal® Security Instruments, Inc. Smoke & Fire Alarm Value Pack 3 pc Pack

    Don't let emergencies sneak up on you with the Universal Security Instruments SS-770-3P Smoke and Fire Alarm. It is a necessary component for every home. Use the battery-powered smoke alarm to keep your family and friends safe. This item is made of... more

    $25.38

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    Universal Security Instruments 1204 Wire-In Smoke Alarm with Battery Backup

    Universal Security Instruments 1204 Wire-In Smoke Alarm with Battery Backup

    World and Main carries a full assortment of plumbing parts and fixtures to meet every project need and retail price point. To make shopping easier for your customer, and stocking shelves a breeze, every repair part is color-coded and each retail pack... more

    $80.13 $18.99

    FREE shipping

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