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Alert System Type
Natural Gas Alert
Smoke / Fire / Carbon Monoxide
Sensor Type
Carbon Monoxide
Natural Gas
Smoke / Heat
Audible Indicator
Battery Backup
Battery Operated
Ceiling Mounted
LED Feedback
Status Indicators
Test Button
Wall Mounted
# of Buttons
1 Button
Battery Type
Battery Size
# of LED's
4 LED's
120V AC
Ease of Installation
Intermediate (Installs < 60 minutes)
Universal Security Instruments
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Complete Protection From Gas Leaks, Fire, Smoke, And False Alarms
Universal Security Instruments MDSCN111 IoPhic 4-In-1Hardwired Smart Alarm
Universal Security Instruments MDSCN1114-In-1 Smoke, Fire, And Gas Hardwired Smart Home Alarm
Universal Security Instruments MDSCN111 4-In-1 Smoke, Fire, And Gas Hardwired Smart Home Alarm
Item# 74904
Price: Normally $69.99 
Hot Deal $52.72
Free shipping on orders over $175 - See Details


  • Single sensor differentiates between actual carbon monoxide, natural gas, fire, smoke, and nuisance alarms
  • Responds 87% faster to slow smoldering fires and quickly for fast flaming fires
  • 9 Volt back-up battery for emergencies and power outages
  • Connects with up to 24 compatible devices for improved detection and warning
  • Microprocessor Intelligence controls alarm temperature, humidity, and false alarm sensitivity
  • Silence/Test button, power indicator, battery replacement warning, and loud 85 dB alarm

Essential Info

Keep your home safe from carbon monoxide, natural gas, smoke, and fire hazards with Universal Security Instruments' IoPhic Home Hardwired 4-In-1 Smart Alarm. The 4-In-1 alarm is a hardwired wall, or ceiling mounted hardwire alarm system equipped with Microprocessor Intelligence temperature control, humidity control, and false alarm control technology to provide consistent alarm sensitivity and performance without interference from common nuisance alarms such as dust, debris, paint fumes, shower steam, cooking smoke, and household chemicals and cleaners.

The 4-In-1 alarm system can also be interconnected with up to 24 other similar alarm systems--so when one alarm goes off on the other side of the house, they all sound alerting you to the presence of carbon monoxide, natural gas, smoke, or fire. When it comes to these hazards, small or big, false of true, early detection and warning can give you the few seconds needed to get to safety.

The alarm that originally detects the presence of carbon monoxide, natural gas, smoke, or fire can be found by simply silencing an alerting alarm and pressing the Test/Silence button to sound the original alarm. The alarm emits a loud 85 dB audible alert that can be hear easily and informs you where the danger is coming from within the home.

The alarm's interconnectivity, false alarm control, temperature control, humidity control, and loud sound offers you value and quality for protecting yourself, your home, and loved ones.


What's Included

  • 1x - Universal Security Instruments Smoke and Fire Alarm
  • 1x - 120 Volt AC 60 Hz
  • 1x - 9 Volt Energizer Alkaline Battery
  • 1x - Mounting Bracket

  • More Info

    Advanced smoke recognitionProvides 87% faster response to smoldering fires AND responds quickest to fast flaming fires
    Patent pending microprocessorVirtually eliminates nuisance alarms cause by non-hazardous sources such as cooking smoke
    Auto sensitivity calibrationPrevents nuisance alarms and provides consistency
    Self-diagnostics featurePerforms a status check upon power up to ensure alarm is functioning properly
    Ambient condition compensationAutomatically adjusts sensitivity for changes in temperature and humidity, reducing nuisance alarns
    Quick Find alarm origination featurePatented feature easily identifies first alarm to sound in interconnected system
    Quick activation pull tabPreserve battery life. Preinstalled battery is quickly activated without removing alarm from bracket
    Universal mounting bracketFits any standard wiring junction box, single gang, round or octagon, up to 4”
    Larger mounting baseCovers drywall imperfections and old paint marks
    Product end-of-service life warningSounds when it is time to replace the alarm in approximately 7 years from the date of activation
    Front-load battery drawerReplace battery without removing alarm from bracket
    InterconnectableUp to 24 USI or Universal brand devices using existing wiring and mounting (battery drawer models)
    2 tamper resistant locking featuresPrevents unauthorized removal of alarm or battery
    9 Volt battery backupProvides continuous protection in the event of power outage


    ManufacturerUniversal Security Instruments, Inc.
    Manufacturer Product No.MDSCN111
    Dimensions5.63” x 5.63” x 1.75”
    Weight0.65 pounds
    Sensor TypeIoPhic Universal Sensing Technology
    Primary Power120 Volt AC 60 Hz
    Battery Backup9 Volt Energizer Alkaline Battery
    Audible Alarm85 dB at 10 feet

    End-of-service life warning
    Temperature Range32° F to 100° F (0° C to 38°C)
    Humidity Range5% to 95% RH
    InterconnectMaximum 24 USI/Universal devices
    LED4 LED’s: alarm, power, CO, gas
    Manufacturer Warranty7 year limited warranty
    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Universal Security Instruments Inc, Tel: (410) 363-3000 Ext


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