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Alert System Type
Carbon Monoxide Alert
Smoke / Fire / Carbon Monoxide
Sensor Type
Alert System
Carbon Monoxide
Battery Operated
LED Feedback
Ease of Installation
Intermediate (Installs < 60 minutes)
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Warns of CO Poisoning Danger, Preventing Damage to Vital Organs and Even Death
Isonic Wireless Carbon Monoxide (CO) Detector - MCT-442
Visonic Wireless Carbon Monoxide (CO) Detector - MCT-442
Visonic Wireless Carbon Monoxide (CO) Detector - MCT-442
Item# 73941
Price: Normally $119.99 
Hot Deal $75.90
Free shipping on orders over $175 - See Details


  • Fully wireless and supervised detector transmits alarm and functionality alerts to the PowerMax® control panel, which notifies the user and/or the central station
  • Gives early warning of carbon monoxide (CO) poisoning danger, providing visual and audial alarm indications when CO is detected
  • Loud built-in alarm buzzer (95db) and a large flashing LED alarm
  • Continuous auto-testing and manual testing
  • Five-year life, with end-of-life notification
  • Battery operated, ensuring continuous protection
  • low battery and sensor end of life indications
  • Easy wall or ceiling installation (with bracket), with no need for cabling work
  • simple battery replacement
  • Back tamper
  • Available in a variety of frequency bands, the MCT-442 has been granted the most demanding CO detection certifications in Europe

Essential Info

The MCT-442 wireless Carbon Monoxide (CO) detector gives early warning of CO poisoning danger, preventing damage to vital organs and even death. As a fully supervised wireless detector, the MCT-442 transmits all alerts to the control panel, which instantly forwards the alert to a central station or private phone number. That enables a rapid and effective response to remove the CO poisoning danger, protecting children, the elderly and even pets, from an invisible and potentially deadly threat.

More Info

High accuracy and reliability
The MCT-442 CO detector utilizes a sophisticated electrochemical sensor to provide linear output in proportion to CO gas concentration, which is the most accurate technology available for CO detection. The sensor's flexible and miniature construction results in high resistance to shocks and vibrations. A sophisticated microprocessor receives data from a sensor, calculates the CO level and leak duration, and provides an alarm before dangerous CO levels are present. The detector has a five-year life and an expiration timer that notifies users when the detector should be replaced. As a battery-operated device, detection continues non-stop, even during power outages.

Because CO is a colorless, odorless and tasteless, yet very toxic gas that is produced when household heating and cooking fuels are not fully burnt up, quick identification of a leak is vital. The MCT-442 provides highest reliability, in an attractive, easily installed wireless detector, making it the ideal solution for protecting family members from CO poisoning

Available in a variety of frequency bands, the MCT-442 has been granted the most demanding CO detection certifications in Europe.
Important notes:
Defective exchanges for identical item within Manufacturer’s warranty period.
Manufacturer contact information: Visonic Inc, Tel: (860) 243-0833


6 Ratings
5 star: 33%  (2)
4 star: 33%  (2)
3 star: 0%  (0)
2 star: 17%  (1)
1 star: 17%  (1)
Average Customer Rating
(6 customer ratings)
Share your thoughts with other customers
JOHN E -- henderson, NV   9/3/2011
First Unit I received was defective, Smarthome quickly replaced it. Second unit seems to work fine.
19jet54 -- henderson, Nevada   8/15/2011
The 1st one I received was defective, but SmartHome quickly replaced it with another, which worked just fine. The product does have an expiration date of about 6 years after MFG date, and will beep every 60 seconds on expiration or low battery.
JEFFREY -- brooklyn, NY   11/9/2010
too expensive

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