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    Best Seller
    Universal Security Instruments MDSCN111 4-in-1 IoPhic Smoke, Fire, CO and Natural Gas Smart Alarm

    Universal Security Instruments MDSCN111 4-in-1 IoPhic Smoke, Fire, CO and Natural Gas Smart Alarm

    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 $39.99

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    Electric 4-in-1 Universal Smoke Sensing (IoPhic) Hardwired Smart Alarm

    Electric 4-in-1 Universal Smoke Sensing (IoPhic) Hardwired Smart Alarm

    Click here for additional savings!

    The Universal Security Instruments Electric MDSCN111 4-in-1 Universal Smoke Sensing Smart Alarm provides quadruple the protection with a single installation. This 120-volt AC alarm protects against four deadly household threats: fast-flaming fires,... more

    $54.97

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    Best Seller
    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

    $13.11

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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 $13.39

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

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

    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. more

    $74.73 $54.90

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    Universal Security Instruments MDS300 Universal Smoke Sensing (IoPhic) Battery-Operated Smoke and Fire Alarm

    Universal Security Instruments MDS300 Universal Smoke Sensing (IoPhic) Battery-Operated Smoke and Fire Alarm

    The Universal Security Instruments MDS300 Universal Smoke Sensing Smoke and Fire Alarm responds quickly to both fast-flaming and slow-smoldering fires to protect your family against deadly threats in the home. Perfect for new or replacement... more

    $21.99

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    Universal Security Instruments MDS300B Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm

    Universal Security Instruments MDS300B Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm

    Universal Security Instruments MDS300B IoPhic Smoke And Fire Alarm with new patented IoPhic technology makes conventional alarms obsolete. IoPhic Universal Smoke Sensing Technology responds 87 percent faster to slow smoldering fires and responds... more

    $13.39

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    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Free Shipping on Over 500K Items!

    This USI Electric brand smoke and fire alarm has been redesigned to include more performance features than ever before. It provides improved nuisance alarm resistance. Nuisance alarms are the leading reason for intentionally disabled smoke alarms.... more

    $11.74

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    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Free Shipping on Over 500K Items!

    Microprocessor intelligence provides improved resistance to nuisance alarms caused by non-hazardous sources such as every day cooking smoke or steamy showers. Nuisance alarms are the leading reason for intentionally disabled smoke alarms. Working smoke... more

    $15.82

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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 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

    $36.70

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    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Hardwired Interconnected Smoke and Fire Alarm with Battery Backup

    Free Shipping on Over 500K Items!

    This USI Electric brand smoke and fire alarm has been redesigned to include more performance features than ever before. It provides improved nuisance alarm resistance. Nuisance alarms are the leading reason for intentionally disabled smoke alarms.... more

    $19.99

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    Universal Security Instruments MCND401B 2-in-1 Plug-In Carbon Monoxide Natural Gas Alarm with Display Screen, Classic White

    Universal Security Instruments MCND401B 2-in-1 Plug-In Carbon Monoxide Natural Gas Alarm with Display Screen, Classic White

    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

    $48.65

    FREE shipping

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    USI Electric MDS107 Hardwired 2-in-1 Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm with Battery Backup

    USI Electric MDS107 Hardwired 2-in-1 Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm with Battery Backup

    The USI Electric MDS107 Universal Smoke Sensing Smoke and Fire Alarm responds quickly to both fast-flaming and slow-smoldering fires to protect your family against deadly threats in the home. Perfect for new or replacement installations, the 120V AC... more

    $17.97

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    Universal Security Instruments USI-3204-2P-3CC Photoelectric Smoke (Grey) Alarm, 2-Piece Value Pack

    Universal Security Instruments USI-3204-2P-3CC Photoelectric Smoke (Grey) Alarm, 2-Piece Value Pack

    Don't let emergencies sneak up on you with help from these Universal Security Instruments USI-3204-2P-3CC Photoelectric Smoke Alarms. They are a necessary component for every home or business. Use these home smoke alarms to keep your family, friends... more

    $23.12

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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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    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

    $26.98

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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

    $24.98

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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

    $28.34

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    USI MDS300B Universal Smoke Sensing Technology (IoPhic) Battery-Operated Smoke and Fire Alarm

    USI MDS300B Universal Smoke Sensing Technology (IoPhic) Battery-Operated Smoke and Fire Alarm

    Universal Security Instruments Universal Smoke Sensing Technology (IoPhic) Battery-Operated Smoke and Fire Alarm responds quickest to fast flaming fires and 87 % faster to slow smoldering fires. Operates using 9 volt alkaline batteries and offers... more

    $16.99

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    Homelectrical

    (1,000+)
    USI MI106S 2-in-1 Universal Smoke Sensing and Fire Smart Alarm with 10 year Sealed Battery

    USI MI106S 2-in-1 Universal Smoke Sensing and Fire Smart Alarm with 10 year Sealed Battery

    Universal Security Instruments 2-in-1 Universal Smoke Sensing and Fire Smart Alarm with 10 year Sealed Battery is a 2-in-1 universal smoke sensing and fire alarm. It responds quickest to fast flaming fires and 87% faster to slow smoldering fires. The... more

    $20.99

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    Homelectrical

    (1,000+)
    USI USI-960 Relay Module for Smoke and Fire Alarms

    USI USI-960 Relay Module for Smoke and Fire Alarms

    Universal Security Instruments Relay Module for Smoke and Fire Alarms is compatible with most USI electric and Universal security smoke alarm models. Features form C dry contacts. Contacts activate when the alarm sounds. Contacts deactivate shortly... more

    $14.99

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    Homelectrical

    (1,000+)
    AC Hardwired Iophic Smoke/Fire Carbon Monoxide and Natural Gas Alarm with Battery Backup

    AC Hardwired Iophic Smoke/Fire Carbon Monoxide and Natural Gas Alarm with Battery Backup

    Free Shipping on Over 500K Items!

    Universal Security 4-in-1 Smart Alarm uses a single sensor to detect both CO and Natural Gas and protects against both fast flaming and slow smoldering fires. Microprocessor Intelligence provides superior nuisance alarm resistance, along with... more

    $39.99

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    Universal Security Instruments 5304 Hardwired Ionization Smoke and Fire Alarm, Silver

    Universal Security Instruments 5304 Hardwired Ionization Smoke and Fire Alarm, Silver

    Improve your home safety with the reliable Universal Security Instruments 5304 Hardwired Ionization Smoke and Fire Alarm. It features a Quick Find feature and a quick activation battery pull-tab. It also has a universal mounting bracket so it can be... more

    $10.01

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    Universal Security Instruments SS-770-24CC Ionization Fire and Smoke (Grey) Alarm, Mini

    Universal Security Instruments SS-770-24CC Ionization Fire and Smoke (Grey) Alarm, Mini

    The Universal Security Instruments SS-770 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 9-volt battery (included) and is... more

    $7.99

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    Universal Security Instruments MCN400B 2-in-1 Plug-In Carbon (Black) Monoxide Natural Gas Alarm

    Universal Security Instruments MCN400B 2-in-1 Plug-In Carbon (Black) Monoxide Natural Gas Alarm

    Keep your home safe with this Universal Security Instruments MCN400B 2-in-1 Plug-In Carbon Monoxide Natural Gas Alarm. Easy to use, it plugs into a wall outlet. The Universal carbon monoxide alarm features LED power and warning lights. It is made of... more

    $36.36

    FREE shipping

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

    Universal Security Instruments 976LR 9V Smoke (Grey) 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

    $14.69

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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

    Universal Security Instruments MIC1509S 3-in-1 Universal Smoke Sensing Carbon Monoxide Combination Alarrm with 10 Year Sealed Battery. Available December 15, 2014. more

    $42.41

    FREE shipping

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    Universal Security Instruments SS-770-6CC Battery-Operated Ionization Smoke and Fire Alarms, 6-Pack

    Universal Security Instruments SS-770-6CC Battery-Operated Ionization Smoke and Fire Alarms, 6-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 (6) and are operated by... more

    $29.95

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    Universal Security Instruments SS-770 Battery-Operated Ionization Smoke and Fire Alarm

    Universal Security Instruments SS-770 Battery-Operated Ionization Smoke and Fire Alarm

    The Universal Security Instruments SS-770 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 9-volt battery (included) and is... more

    $8.86

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    Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    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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    Universal Security instruments SS-901-LR 9-Volt Battery Operated Photoelectric Smoke and Fire Alarm

    Universal Security instruments SS-901-LR 9-Volt Battery Operated Photoelectric Smoke and Fire Alarm

    The Universal Security Instruments SS-901-LR Battery-Operated Photoelectric Smoke and Fire Alarm responds quickly to slow-smoldering fires to protect your family against deadly threats in the home. This alarm is operated by a heavy-duty 9-volt battery... more

    $9.93

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

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

    The Universal Security Instruments SS-901-2C/3CC Battery-Operated Photoelectric Smoke and Fire Alarm responds quickly to slow-smoldering fires to protect your family against deadly threats in the home. This alarm is operated by a heavy-duty 9-volt... more

    $20.99

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    Universal Security Instruments SS-770-3P Battery Powered Ionization Smoke and Fire Alarm, 3-Pack

    Universal Security Instruments SS-770-3P Battery Powered Ionization Smoke and Fire Alarm, 3-Pack

    Universal Security Instruments SS-770-3P Battery Powered Ionization Smoke and Fire Alarm, 3 Pack, are fast and easy to install - no wiring required. This is a perfect choice for new or replacement installations. The convenient 3-Pack contains three (3)... more

    $23.78

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    Universal Security Instruments MIC3510SB 3-in-1 Smoke Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    Universal Security Instruments MIC3510SB 3-in-1 Smoke Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery

    The Universal Security Instruments MICH3510SB 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... more

    $41.32

    FREE shipping

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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

    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. New patented Universal Smoke Sensing Technology provides the benefits of both photoelectric and... more

    $14.88

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    Battery Powered Smoke and Fire Alarm

    Battery Powered Smoke and Fire Alarm

    Free Shipping on Over 500K Items!

    IoPhic Universal Smoke Sensing Technology alarms with microprocessor intelligence are designed to virtually eliminate nuisance alarms caused by non-hazardous sources such as every day cooking smoke or steamy showers. Nuisance alarms are the leading... more

    $13.39

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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

    $53.99

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    10 Year Sealed Battery-Operated Carbon Monoxide Smart Alarm

    10 Year Sealed Battery-Operated Carbon Monoxide Smart Alarm

    Free Shipping on Over 500K Items!

    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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    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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    Hardwired Interconnected Smoke and Fire Alarm

    Hardwired Interconnected Smoke and Fire Alarm

    Free Shipping on Over 500K Items!

    IoPhic Universal Smoke Sensing Technology alarms with microprocessor intelligence are designed to virtually eliminate nuisance alarms caused by non-hazardous sources such as every day cooking smoke or steamy showers. Nuisance alarms are the leading... more

    $16.99

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