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MCT-320 - Visonic Miniature Wireless Contact

MCT-320 - Visonic MCT-320 Miniature Wireless Contact
Manufacturer:  Visonic Security Systems  SKU:  MCT-320
Rating: [3]   Write a Review | Read Reviews
In Stock
Usually leaves our warehouse the same business day.
I've used some pretty bulky and ugly contacts throughout the years. This is about as small as you can get, and it works great.
Price:  $25.68

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The MCT-320 is meant primarily for protecting doors and windows. The MCT-320 uses a built-in magnet that works in conjunction with a magnetic contact to detect precisely when a door or window are being opened/closed. The MCT-320 is ideal for both your home or business, while its very small size is convenient both because it is virtually invisible and easy to install.

The MCT-320 also features a unique anti-collision algorithm that prevents what is known as "signal jamming" by the simultaneous transmission of multiple devices. The MCT-320 is able to transmit periodic "supervision signals" to confirm that your system is connected at all times.


  • Very small, almost invisible design
  • Highly cost-effective for low-profile installations
  • Fully supervised
  • Double tamper protection (cover and wall)
  • Long-life standard lithium battery included
  • LED indicator (can be disabled).
  • Low battery indication transmission
  • Available in several optional frequencies in compliance with international standards.
  • Compatible with PowerMax home security systems and all Visonic PowerCode; wireless panels and receivers.
Rating: (1.67)   # of Ratings: 3   

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Showing comments 1-3 of 3
1. Brian on 9/15/2012, said:

Ditto on chewing up the housing. If I need to replace a battery, no plastic will be left!!

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2. Michael on 7/31/2012, said:

I had the same problem with the housing being shut so tight that it would not open like the instructions say it will without mangling the plastic housing. Very frustrating!

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3. Timothy on 7/10/2012, said:

I bought one of these to see how it worked. It is definately smaller and nicer to look at, but in the long term I chewed up the housing just getting the cover open a few times to do some configuration work and mount it. The range is also not as great with a much smaller antenna, which is not a surprise. If you are looking long term I would go with the full size sensor as it is much easier to get into once mounted. I don't see this sensor being a long term item as you shred up the housing trying to get it open every few years and particularly if it is mounted in a hard to reach spot.

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Showing comments 1-3 of 3
Frequency (MHz) 315, 433.92, 868.95, 869.2125 or according to local requirements (UL has only investigated at 315 MHz).
Transmitter's ID Code 24-bit digital word, over 16 million combinations, pulse width modulation.
Overall Message Length 36 bits
Power Source 3 V Lithium CR-2 type battery, Panasonic, Sanyo or GP only. Caution! Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the manufacturer's instructions.
Battery Life Expectancy 5 years (for typical use)
Battery Supervision Automatic transmission of battery condition data as part of any status report.
Operating Temperature -10°C to 55°C (14°F to 131°F).
Dimensions 51 x 30 x 21 mm (2 x 1-3/16 x 13/16 in.)
Weight (including battery) 36g (1.27 oz)
Standards USA (315 MHz): CFR47 part 15 (FCC) UL 634, ULC C634
Installation Manual
Downloads: 2
Size: 336100 KB