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Sensor Type
Contact Closure
Contact Closure Sensors
Door / Window
Contact Closure / Relay
RF Transmission
Battery Operated
Ease of Installation
Intermediate (Installs < 60 minutes)
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Magnetic Contact Transmitter Designed to Protect Doors and Windows
Visonic MCT302P Wireless Door/Window Transmitter
Visonic MCT302 Power Code Wireless Door/Window Transmitter
Item# 73953
Price: Normally $49.99 
Hot Deal $26.31
Free shipping on orders over $175 - See Details


  • Magnetic contact and auxiliary input for external devices
  • User-selectable operation of auxiliary input as NC or EOL (end-of-line loop with NC or NO sensors)
  • Superior transmission range
  • Smart anti-collision mechanism supports multiple simultaneous transmissions
  • Compatible with PowerMax and all Visonic PowerCode wireless panels and receivers

Essential Info

The MCT-302 is a fully supervised PowerCode magnetic contact transmitter, designed primarily for protecting doors and windows using a built-in magnetic contact that operates in conjunction with a magnet to detect the opening and closure of a door or window. This highly reliable top-performance wireless device is easy to install and operate in a wide range of residential and commercial environments.

An additional hard-wired, end-of-line (EOL) protected input can be used, with normally open (NO) and normally closed (NC) pushbuttons, sensors, contacts, switches and other detection devices, for a variety of security and control applications. The MCT-302T offers an additional back tamper switch for detecting removal of the device from its place to comply with the latest European EN standards requirements.

When activated, the magnetic contact and the auxiliary input initiate an individual 24-bit PowerCode ID message, which identifies it to the target receiver as a separate transmitter. Each ID code is randomly selected from 16 million possible combinations, and is therefore unique and virtually impossible to accidentally reproduce. A smart anti-collision algorithm prevents signal jamming by simultaneous transmission from multiple devices. Periodic transmission of supervision signals is used to confirm system connectivity at all times.


More Info

These unique top quality devices are available in several optional frequencies in compliance with European, U.S. and other international standards. Each transmitter is powered by a standard long-life lithium battery, which is constantly monitored, with automatic reporting to the receiver when the battery needs to be replaced.


Manufacturer Product NoMCT302P
Frequency (MHz)315, 433.92, 868.95, 869.2125, 869.2625
or according to local requirements
Transmitter's ID Code24-bit digital word, over 16 million combinations
Overall Message Length36 bits
Alarm Inputs2, one internal and one external
Auxiliary Input Circuit TypeN.C. / E.O.L., selected with DIP switch
E.O.L. Resistor Required47 kO
Message RepetitionRepetitive transmission (once every 3 minutes)
SupervisionSignaling at 60-min.
Response to Tamper EventTamper report every 3 minutes
Power Source3 V Lithium CR-2 type battery
Battery Life Expectancy3 years (for typical use)
Battery SupervisionAutomatic transmission of battery condition data
Operating Temperature0°C to 49°C (32°F to 120°F)
Dimensions3 1/6" x 1 1/4" x 1"
Weight1.9 Ounces
StandardsMeets FCC Part 15, IC: RSS 210
MPT1349 and Directive 1999/5/EC
EN 50131-1, Grade 2, Class II.
Important notes:
Defective exchanges for identical item within Manufacturer’s warranty period.
Manufacturer contact information: Visonic Inc, Tel: (860) 243-0833


49 Ratings
5 star: 55%  (27)
4 star: 29%  (14)
3 star: 8%  (4)
2 star: 0%  (0)
1 star: 8%  (4)
Average Customer Rating
(49 customer ratings)
Share your thoughts with other customers
WILLIAM -- pinckney, MI   4/28/2013
Works well. For this sensor/transmitter, I used the "external Switch" option, connecting it to a N/C device. Works well.
RAUL A -- camuy, PR   4/15/2013
Fully met my expectations.
RICK -- palm desert, CA   1/11/2013
Very function and easy to install
GREGORY -- middletown, OH   10/15/2012
This was not compatable
JEFF -- fresno, CA   9/1/2012
It's a big sensor... definitely did not work for my vinyl windows. I had to buy wired sensors and hook them up to the aux connectors on this transmitter.
RICHARD -- norridgewock, ME   6/25/2012
Good working sensor
DANN -- keauhou, HI   6/21/2012
Very reliable, and easy to set up.
ANDREY -- redmond, WA   5/23/2012
works the way it should
JORGE E -- san juan, PR   4/19/2012
Excellent service!
BRANDON P. -- dundalk, MD   1/19/2012
I got two more of these for the doors on my screened in porch. Programed them as non-emergency and enabled the chime. Now the doorbell rings anytime someone comes on the porch. Works great!
GUNNAR -- santa clara, CA   12/22/2011
Has the RF ID code on the label so it is compatible with the Visonic Amber Selectx as sold by Smarthome. The "PERS" designation should be added to the model number so it is clear the RF ID code is there, as is the case on the Visonic Web Product site.
ANTHONY -- hickory, NC   12/4/2011
Like the ability to use reed switch and/or wired input.
JOHN -- pleasant hill, CA   9/1/2011
5 out of 6 worked the 6th one won't enroll... claims it's 'open' claims it has 'inactivity'
MARK -- pineville, NC   4/29/2011
Just needed extras. They work like the others.
RICK -- decatur, GA   4/14/2011
excellent value, easy to set up and use in my existing Visonic security system.
JOS MANUEL -- la pobla de vallbona, XX   2/7/2011
Everything was in correctly.
ROBERT -- white plains, NY   2/3/2011
Easy installation and communicates easily with wireless receiver.
DENNIS -- syosset, NY   1/22/2011
Works as advertised. The price seems expensive for the item.
ROBERT -- snohomish, WA   1/3/2011
No problems. Great battery life.
RICK -- decatur, GA   12/9/2010
Easy set up.

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