Old fashioned manual door lock - but is it locked?

[MarkTr]

Here’s one option:

Home made door lock sensor

Found it! Sounds like the GoControl Contact Sensor may be the one to use. I have a few of the Monoprice ones,so I may have to try this out for fun.

Here’s another but the thread he links to with photos is gone / locked. I think the idea was the same as above but with a switch buried in the rebate rather than in the deadbolt housing.

New(?) Way To Monitor A Dumb Deadbolt Lock

Hi I have just completed a high tech version of something I did in another house long ago, before any of us had wifi. I am now using an Ecolink Door/Window Sensor to determine if the conventional deadbolt lock on a back door is locked/unlocked. I embedded a micro lever switch in the door jam next to the deadbolt. The switch is wired as normally open. The next step was to wire the switch to the Ecolink, which is mounted on the wall next to the door moulding. When the Deadbolt is in the locked position, it presses the switch, which in turn closes the contacts on the Ecolink. Now when we want to make sure that door is locked (at night or when we are away) we can just look at the ST app instead of going to the door to check it. Might even have it text me just before bedtime if it is sti…

As I recall the switch he used was this style (I bookmarked it to buy one but eventually got a smart lock instead):

https://www.surveillance-video.com/security-3005-n.html?gclid=Cj0KCQjw4eXPBRCtARIsADvOjY2OeOXKQI9DhQrq67piYmksa0vo4CDnrxUT8Ev73bm_Krb4jYnZMs4aAn3dEALw_wcB&ref_=lv_ov_lig_pab}

And here’s my super-cheesy short-term approach:

Sync Virtual Lock to Contact Sensor

Finally got around to getting a photo of my short term solution: [15238346579037487677375224439408]