Reddit mentions of Aeotec by Aeon Labs ZW097 ZW097-A Dry Contact Sensor Gen5, Small, White

That particular box is a low/high voltage box. The left side is open for low voltage wiring and the right side is for high voltage wiring (hence why it is enclosed. Mr_Norwall is correct... it is probably just a control line for an ignition system in the fireplace 'controller'. The green would be the ground (so it doesn't float) and the red/white would be the line to start the fireplace.


Another solution you might want to check out is an in-wall module or a dry-contact relay. Such examples are:

https://www.amazon.com/Remotec-Zwave-Contact-Fixture-Module/dp/B00913ATFI/ref=sr_1_1?ie=UTF8&qid=1478881790&sr=8-1&keywords=z-wave+dry+contact

https://www.amazon.com/Aeotec-Aeon-Labs-ZW097-Contact/dp/B0155HSUUY/ref=sr_1_2?ie=UTF8&qid=1478881790&sr=8-2&keywords=z-wave+dry+contact

https://www.amazon.com/GoControl-Z-Wave-Isolated-Contact-Fixture/dp/B00ER6MH22/ref=sr_1_4?ie=UTF8&qid=1478881790&sr=8-4&keywords=z-wave+dry+contact


Some dry contact modules will still require 120v to be added though. The Aeon Labs, for instance, just runs on a coin cell I think.

edit: adding product links

Aha. I've done this using a current sensor and an Aeon Labs dry contact z-wave module. Here are the details of what I did:

• Passed the common wire for the indoor HVAC blower through a current sensor switch. The switch I used was Functional Devices RIBXGTA (split core, terminals, adjustable sensitivity from 0.75-150A). Here's the link. It is split core, so it was very easy to pass the HVAC blower common through it.
  
• I wired the terminals to the Aeon Labs dry contact sensor using 18 gauge wire. The current Amazon price for this thing is crazy - you can use any z-wave contact sensor that supports external wiring. The sensor pairs as a door open/close sensor to my Wink hub. I also use Home Assistant (critical for my application).
  
• When current passes through the common wire, it is detected as a change in the contact sensor (close becomes open). Based on this change you can trigger a Wink robot or whatever else you want.
  
  My application was I wanted the sound bar on my TV to increase in volume by three when the HVAC blower comes on and decrease in volume when the HVAC blower goes off. Using HASS, I raise the volume on my sound bar (using Harmony) when the HVAC comes on and lower it when it goes off. Works great.

I've used this mat in the bed, between the topper and matress: https://www.amazon.com/gp/product/B00GUNX7WY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 with this zwave sensor: https://www.amazon.com/gp/product/B0155HSUUY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Another good solution I have used is to put a zwave motion sensor directly over the bed.

The SDC MS-12 (http://www.sdcsecurity.com/Latch-and-Deadbolt-Monitoring-Strikes.htm) will do exactly what you're looking for on the deadbolt monitoring side of things. From there, you'll need to connect it to a Z-wave relay like an Aeotec dry contact relay (Aeotec by Aeon Labs ZW097 Dry Contact Sensor, Small, White https://www.amazon.com/dp/B0155HSUUY/ref=cm_sw_r_cp_apa_akuNBb0AV01XF) for communication with your Z-wave infrastructure.

^ This - just setup an aeotec zwave dry contact sensor ( https://www.amazon.com/gp/aw/d/B0155HSUUY ) connected to a magnetic reed switch ( https://www.amazon.com/gp/aw/d/B0009SUF08 ). Had to drill a small hole for wiring in the bottom of my metal mailbox and mounted the sensor outside the box (for reception) - put the sensor directly underneath the box and it seems to be well hidden and protected from the elements with excellent long distance range.

The setup has been a game changer for me - i get an immediate smartthings alert the second the box is opened. I startled my neighbor the other day when he put mis-delivered mail in my box and i was outside 10 seconds later to greet him.

maybe the aeon dry contact sensor?
https://www.amazon.com/Aeotec-Aeon-Labs-ZW097-Contact/dp/B0155HSUUY

What about something like this?

https://www.amazon.com/Aeotec-Aeon-Labs-ZW097-Contact/dp/B0155HSUUY/ref=cm_cr_arp_d_product_top?ie=UTF8

If this is a garage remote integrated into the car, it's probably HomeLink type.

You can use something like this : https://www.amazon.com/955D-Universal-Remote-Control-Replacement/dp/B000EOFQBK/ / http://support.chamberlain.com/articles/How_To/Chamberlain-Universal-Receiver-Model-955D-Owner-s-Manual-1484145552126

Combined with whatever device can convert contact closure to input that you want, for example :

Z-Wave : https://www.amazon.com/Aeotec-Aeon-Labs-ZW097-Contact/dp/B0155HSUUY

Insteon : https://www.smarthome.com/insteon-2843-222-wireless-open-close-sensor.html (can wire things into it) or https://www.smarthome.com/i-o-linc-insteon-2450-low-voltage-contact-closure-interface-1-in-1-out.html

And if you're using X-10, HomeLink should be able to learn an X-10 code to transmit directly.