rg65 Posted August 24, 2016 Posted August 24, 2016 I have 2 kids that obviously are unable to remember to lock a door. Does anyone know if it would work if I installed a hidden door sensor in the hole where the deadbolt goes in to sense if it is locked or not? I would set up a program to notify me after 10pm if the deadbolt was not activated. I know I can do this with Zwave deadbolts, but my wife likes the locks we have. Just wondering before I purchase one. Thanks in advance!
larryllix Posted August 24, 2016 Posted August 24, 2016 You would have to drill a hole deeper than the tongue of the deadbolt plus the length of the HDS. Without having one you may be past the doorframe stud and jack stud into the insulation of an outside wall. It would be hard to service when you need to check/change batteries.
giesen Posted August 24, 2016 Posted August 24, 2016 I did it for my house (albeit with a wired sensor). But then again, there's nothing in my walls except 1x2 strapping and tar paper... Sent from my SM-N910W8 using Tapatalk
rg65 Posted August 24, 2016 Author Posted August 24, 2016 Thanks! I have the space, there are 4 2x4s stacked on that side of the door frame. I didn't think about the battery change outs. How long do the batteries last in these units?
stusviews Posted August 24, 2016 Posted August 24, 2016 The place where a deadbolt is installed is the weakest link in the door buck. A decent deadbolt has a steel striker plate and lengthy screws. Drilling a hole in that location will severely and negatively impact the strength of the deadbolt against a break-in. Doing so is a terrible idea as far as security is concerned. IMO, a remote controllable deadbolt is a solution.
visualcoat Posted August 24, 2016 Posted August 24, 2016 These two guys did what you are talking about: http://homeautomationguru.com/insteon-door-lock-sensor/ andhttp://tcbf62auto.blogspot.com/2014/09/using-insteon-hidden-door-sensor-to.html
stusviews Posted August 24, 2016 Posted August 24, 2016 Wow, that makes it easy to kick open the door right at the point where the deadbolt is installed
larryllix Posted August 24, 2016 Posted August 24, 2016 Wow, that makes it easy to kick open the door right at the point where the deadbolt is installed As long as ISY gets notified! Afterall, this is an HA forum, not a security forum! I always love the super-nichrome-herculean-krytonite metal hardened, impenetrable, security deadbolts right beside the door sidelites, made of breakable glass. ....and safety glass too, as you don't want the burglar to get a cut!
stusviews Posted August 24, 2016 Posted August 24, 2016 It just doesn't make sense to specifically weaken an entry point, most especially when an HA device is available to better accomplish the task.
giesen Posted August 24, 2016 Posted August 24, 2016 It just doesn't make sense to specifically weaken an entry point, most especially when an HA device is available to better accomplish the task. Sure it does, when there are weaker entry points, and reliability of the sensing is important. Besides, you can always reinforce it with a plate or a strike box.
giesen Posted August 24, 2016 Posted August 24, 2016 These two guys did what you are talking about: http://homeautomationguru.com/insteon-door-lock-sensor/ andhttp://tcbf62auto.blogspot.com/2014/09/using-insteon-hidden-door-sensor-to.html Those are massive (and correspondingly, the hole used to insert them) compared to the Flair VIP70 (http://www.flairsecurity.com/product/vip70-38-recessed-plunger-switch/) I used
stusviews Posted August 24, 2016 Posted August 24, 2016 If it's a metal door, then it is safe to drill a hole for the hidden door sensor, but the signal may not reach anything. BTW, if kicking a metal door to open it is successful, then an interior metal door was used. I've been in the construction industry to know that an exterior metal door won't easily buckle.
stusviews Posted August 24, 2016 Posted August 24, 2016 Those are massive (and correspondingly, the hole used to insert them) compared to the Flair VIP70 (http://www.flairsecurity.com/product/vip70-38-recessed-plunger-switch/) I used A micro switch or the device you linked to doesn't do much to weaken the door. A hidden door sensor does.
larryllix Posted August 24, 2016 Posted August 24, 2016 I have six exterior doors that have glass in them and wouldn't need to buckle, just break. I also have about 19 reachable windows that wouldn't need to buckle either.
stusviews Posted August 24, 2016 Posted August 24, 2016 Locks are an unnecessary expense as are interior doors
rg65 Posted August 25, 2016 Author Posted August 25, 2016 Thanks for the comments! It is a door from the garage, and it is up 4 stairs (with no landing), so I am not worried about someone being able to get the leverage to kick it, although it would make for a funny video as they fell down 4 feet! I am working on my wife for the zwave tomorrow.
stusviews Posted August 25, 2016 Posted August 25, 2016 You have stairs with 12" risers? The kids don't lock the garage door?
rg65 Posted August 26, 2016 Author Posted August 26, 2016 The 4 ft was a quick guess, but the stairs are slightly under 8". There are 4 steps then the step up to enter the house. So, in actuality, there are 5 steps at about 40 inches total. Yes, the kids don't lock the garage door.
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