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Magnetic Lock #11

Open nelsonic opened 6 years ago

nelsonic commented 6 years ago

https://en.wikipedia.org/wiki/Electromagnetic_lock

https://www.ironmongerydirect.co.uk/search?SearchText=electro+magnet image

https://pt.aliexpress.com/item/O-Envio-gratuito-de-Mini-Pequeno-Maglock-Eletromagn-tica-Fechadura-Do-Arm-rio-Para-Arm-rio/32856594819.html

https://www.locksonline.co.uk/Standard-Slimline-Maglock-EM01-Electromagnetic-Lock.html image

https://doorentrydirect.com/magnetic-locks?sort=20a&pagecount=all&product_listing_sorter_id=5

nelsonic commented 6 years ago

Sent delivery quote request to IronMongeryDirect: image

From my research, there kits are v. competitively priced and having a kit means it all works together.

iteles commented 5 years ago

@nelsonic I don't think we got an answer to this, did we?

nelsonic commented 5 years ago

@iteles Yes, we did. but I "held off" on ordering as (a) I found a cheaper (and much better) lock on eBay: https://www.ebay.co.uk/itm/Securitron-Assa-Abloy-MSS-1-Magnetic-High-Security-Switch/332923033599 image

https://www.ebay.com/itm/SECURITRON-ASSA-ABLOY-MSS-1-HIGH-SECURITY-SWITCH-FREE-SHIPPING-/263073440392 image

(b) We don't need to have the locks on the doors until the first person joins us.

iteles commented 5 years ago

We need to have some locks on some doors if we want to move any of your machinery/our stuff in whilst there are still workmen with access to the house though.

nelsonic commented 5 years ago

@iteles technically, until we have a Backup Power Supply see: https://github.com/dwyl/home/issues/25 all Magnetic Locks will default to open if the power is cut. And since the "consumer" unit is easily accessible in the house, a minimally intelligent person can simply manually flip the switch to unlock the door(s). So ... having the Magnetic locks is only a "suggestion" ("please don't enter this room), it's not deterrent.

My plan is to order a bunch of different locking mechanisms and experiment with them to see which ones are easy to "crack" ...

This lock will serve our needs: https://www.aliexpress.com/item/1000KG5-Wires-DC12V-Electric-Lock-Door-Magnetic-Electromagnetic-Lock-Holding-Force-For-Access-Control-Electric-Bolt/32916103519.html image

image

We will use the "Power to Unlock" mode such that a power cut will result in locked doors. We would definitely need to have a Backup Power Supply to ensure people don't get "stuck" in the event of a Power Cut or Surge.

nelsonic commented 5 years ago

These are more expensive but have a key and thumb open as "backup": https://www.aliexpress.com/item/Fail-Secure-Electric-dead-bolt-With-Mort-Lock-Cylinder-keys-locking-when-power-failure-12V-24V/32801125931.html image

Still considerably cheaper than the ones Chico is proposing.