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Connecting your Visonic MCT-340 E Window/Door Sensor to SmartThings

Connecting your Visonic MCT-340 E Window/Door Sensor to SmartThings
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Synopsis: Follow these step-by-step instructions to connect the Visonic MCT-340 E Window/Door sensor to your Samsung SmartThings Hub. (Updated 10/10/17: Now Works Natively with Samsung SmartThings Hub)
Now Works Natively with Samsung SmartThings Hub

10/10/17 Update: Visonic MCT-340 E Wireless Door Window and Temperature Sensors are now natively supported by Samsung SmartThings for hassle-free connection to your SmartThings hub!

Connect to your SmartThings hub simply by putting your sensor in discovery mode, searching for a new 'thing' on your SmartThings app, and pairing with the Visonic MCT-340 E. Complete sensor installation by following the mounting instructions found in the box and you're ready to get started!
Need Help?

Having issues pairing your sensor to your hub? Contact Customer Service directly for assistance.
IMPORTANT!

The instructions found in the blog post below are no longer necessary for connecting your MCT-340 E sensor.

Own this device?

Users can now change to the official Samsung "SmartSence Open/Closed Sensor" device handler by:

  1. Logging into your hub using your developer account information
  2. Go to My Devices
  3. Click on the Visonic MCT-340 E sensor then click edit and in Device Type field
  4. Select "SmartSense Open/Closed Sensor" and click Done
Home Automation Liquidation Sale for smart devices that work for Samsung SmartThins and Zigbee wireless home automation networks

The Visonic MCT-340 E, from Tyco Security Products, is a fully supervised, wireless magnetic window and door sensor, for use with ZigBee enabled home security panels. Connecting it to SmartThings is a quick and easy process when following the steps below.

What you'll need

Pro Tips

  • Using a computer or tablet is recommended during setup for easier navigation.
  • Have your Sensors ready to pair out of the box by following directions 1-7 before they arrive!

Connect to SmartThings

  1. Sign in to your SmartThings Developer API account using YOUR SmartThings App login information.
  2. In the Developer API, go to My Locations, click your location name, and sign in.
  3. Click the My Device Handlers tab.
  4. Click the "Create New Device Handler" link located on the upper right of the page.
  5. Click the "From Code" link located on the left side of the page.
  6. Copy the device handler code from this page.
  7. Paste the copied code into the Developer API and click "Create" then "Publish".
  8. Put your MCT-340 E into discovery mode. (See instructions included in box.)
  9. Use the SmartThings App to search for and install your Window Door sensor(s).
  10. Sit back and relax knowing your home is now protected by your new Visonic MCT-340 E Window Door sensor(s).

Questions?

Comment below with any questions you may have and we'll do our best to assist you!

FAQs

1. Why does my Visonic Window/Door Sensor continue showing up as a "thing"? I cannot get it to pair properly.
If your Visonic Window/Door Sensor continues to show up as a "thing" in discovery mode, this usually indicates that the device was put into discovery mode before the device handler was created. Please follow the Connect to SmartThings instructions above in the order they are written up to step 8. At that time, (1) remove the “thing” from your SmartThings app and (2) reset the sensor according to the instructions in our Troubleshooting section below.

2. I completed the Connect to SmartThings instructions and put the device into discovery mode but my sensor is not seen by the SmartThings App.
If this happens, please try to reboot your sensor according to the instructions in our Troubleshooting section below.

3. I can't sign in because my hub isn't showing up on My Locations in the Developer API. What can I do?
If you find your hub is not listed under My Locations, its likely you're not using your current login and password info from your SmartThings App. Please create a new account using your SmartThings App login information.

Troubleshooting

Having trouble connecting your device? Follow these steps to remove your device in SmartThings and reboot the sensor.

To remove the device in SmartThings

  1. Go to the "thing" representing the sensor.
  2. Click its gear button.
  3. Remove the device.

To reboot the sensor

  1. Remove the battery cover.
  2. Press and release the tamper switch for 1 to 2 seconds.
  3. Close the battery cover.

If you continue having trouble with this device, please contact Technical Support for assistance.

Need help installing your MCT-340 E?

Download the Visonic MCT-340 E user manual for instructions on mounting and activating your device, here. (PDF)

Learn more about SmartThings

  • For more on the Samsung SmartThings Hub, click here.
  • Consult SmartThings Support, here.
  • Or connect with the SmartThings Community for ideas and tips on how to use Home Automation to further customize your Smart Home!

Using your MCT-340 E with another Smart Hub?

Let us know in the comments along with any helpful links you may have used to get connected.

Shop all Home Automation

Click here to view all of our current Home Automation offerings.

Comments on Connecting your Visonic MCT-340 E Window/Door Sensor to SmartThings

Ian Roberts Saturday, January 4, 2020 06:00:38 AM
I have 17 of these units and they constantly go unavailable. Removing the battery and adding a thing on the hub re-connects them but they are far from reliable.
Sens Saturday, November 11, 2017 03:30:44 PM
How can I use this in IFTTT ?
MyDigitalDiscount.com:
Great question! Please feel free to email info@mydigitaldiscount.com with more details and our tech support team will be happy to help you out.
Brian Thursday, October 12, 2017 05:43:09 AM
Bought 5. Installed 2. 1st one worked just over a month bore batter died. Put in a new battery and now 12.hours later it's reporting 33%. Something is causing the battery to die really fast. This is on a door the doesn't get used so not sure what's going on.
Dan Wednesday, October 11, 2017 03:13:53 PM
Is there any way to stop the temperature readings from constantly showing up in the activity feed in notifications? I don't need them to show up there at all, just when I look at the device in the app itself. Thanks!
Max Yin Saturday, September 30, 2017 11:48:15 AM
I am having hard time to make ST hub to discover this sensor. I have followed all instrustions: craete handler, paste the code, reboot sensor, I even rebooted hub, NO LUCK.

Can you give some suggestions to solve this? BTW I have 8 different devices with HUB, so this is not first time.
MyDigitalDiscount.com:
Please contact support@mydigitaldiscount.com with your issue for more info, thank you.
Raj Saturday, September 16, 2017 09:41:59 PM
I could not open step 7 of connect to smartthings, device handler code is not opening .. looks like the link is broken. Could you please fix.
MyDigitalDiscount.com:
The link opens to a page with the code needed to copy into the Developer API. If that link does not open for you then please try the full link below:

raw.githubusercontent.com/tomasaxerot/SmartThings/master/devicetypes/tomasaxerot/visonic-door-window-sensor.src/visonic-door-window-sensor.groovy
Kevin Sunday, July 16, 2017 05:25:07 PM
I am struggling to pair this sensor with my hub. Have followed the instructions to create the device handler and copied code. Also tried resetting the sensor with the tamper switch held for 4 seconds after inserting the battery. No luck. Can someone help.
MyDigitalDiscount.com:
Hi Kevin, please contact support@mydigitaldiscount.com Include the version of the hub if possible in your email as well as any other information regarding connecting your Visonic MCT-340E.
Dani Sunday, June 25, 2017 06:31:19 PM
Hello.

I bought 2 sensors. I followed the above instructions. The 1st sensor works just fine. The second sensor was able to pair and I can see it in smart things but still is not working. The temperature says 32 and the device is not responding. Also, even though it is paired, the red light is still flashing. Any ideas? I tried rebooting and defaulting the sensory. I have uninstalled and reinstalled many times.
MyDigitalDiscount.com:
Sorry to hear about your sensor issue. Please contact support@mydigitaldiscount.com for further trouble shooting, thank you
Miles Wednesday, June 14, 2017 08:54:38 AM
Anyone having these sensors going "unavailable"? I have 2 of these sensors and they work fine for a week but then it started going "unavailable" in the Smartthings app. Resetting it gets the sensor working again. If the sensor is sitting right next to the hub I don't appear to have a problem. The "problem sensor" is about 10 feet away. I replaced the batteries in both sensors and they do the same thing. The primary use of this sensor is to notify me when a door is opened when I am away from the house. The sensor is no longer reliable for this function since I don't know when it will fail. Also, it is getting to be an inconvenience to reset these sensors. I don't have any problems with the Smartthings sensors and I have some of them that are over 20 feet away from the hub.
MyDigitalDiscount.com:
Sorry to hear about your current sensor issues with Smartthings, please contact support@mydigitaldiscount.com for possible trouble shooting ideas. Thank you.
oldbbaritone Tuesday, May 30, 2017 06:38:20 PM
These directions were great, and the GitHub driver installed easily. I believe Samsung made an update, and now you need to set the driver to be "Published". If it's "Unpulished" it does not seem to work. If you have only one hub, you may need to go to "My Locations" first so SmartThings finds it.

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