Shopping Cart

Your cart is empty.

Your cart is empty.

Door Knob Lockout Device (Matt Silver, 1 Padlock). Door Handle Lock - Prevents Doorknobs from Turning and Access to Keyhole. Childproof Door Knob Cover.

4.7 (8) Write Review
Free shipping on orders over $29.99

$17.80

$ 7 .99 $7.99

In Stock

1.Color:Matt Black


About this item

  • Gascem Lockout Device operates by disabling access to handle of certain design and dimension from operating by turning eg door knob, faucet wheel, propane gas valve, water spigot. Designed like a clamshell, it snaps shut around a handle before locking up with a sturdy padlock. A door handle lock, access denied – it is that simple! And your door knob lock without drilling! Or that water spigot lock!
  • The lockout device’s simplicity belies its wide and versatile functionality – from the obvious of door knob & door handle lock for kid safety or dementia patients, to outdoor faucet lock, valves for gas tank, propane tank, spigot wheels, and more! The lockout device is hardy, made of quality steel, powder coated for protection against corrosion and rust. A combination padlock with a user instruction manual for the lockout device is included in the pack.
  • Gascem Lockout Device is ONLY for handle design of CYLINDRICAL KNOB AND HANDWHEEL (BUT NOT LEVER OR CROSS). And, also for handles of suitable dimension. PLEASE CHECK YOUR HANDLE’S DESIGN & DIMENSION AGAINST THOSE IN THE PHOTOS ON THE LEFT OR DESCRIPTION BELOW BEFORE ORDERING.
  • The lockout device is essentially a no drill door lock that acts as a door knob lock. By locking up access to the doorknob, the door cannot be opened! This over knob lock or door knob cover is an effective yet simple solution as a door knob lockout device, lock for bedroom door without drilling.
  • Gascem Lockout Device, as a door handle lock or lock for door knob, is an easy and effective solution to deny access to trailer homes, hotel rooms, work place, offices, rental properties. It is ideal as a portable door lock. It is handy, compact and is quick and easy to install.
  • Gascem Lockout Device can lock door both from the outside or inside. An effective tool keeping autistic or dementia patients in as autism door lock or dementia door lock, or as a reliable door knob cover with lock and key to door knob child proof.
  • Gascem Lockout Device’s versatility extends to denying unauthorised access to faucet wheel, propane gas valve, handwheel valve, gas tanks or water spigot. The lockout device can also be an effective yet simple water spigot lock, as your outdoor faucet lock.


Product Description

Gascem Lockout Device operates by disabling access to handle such as door knob, faucet wheel, propane gas valve, of a certain design and dimension. Designed like a clamshell, it snaps shut around a handle before locking up with a sturdy padlock. In so doing, not only does it blocks the handle's keyhole, it prevents the handle from operating by turning.

Access denied – it is that simple! And your doorknob lock without drilling!

The lockout device’s simplicity belies its wide and versatile functionality – from the obvious of door knobs & door locks for kid safety or dementia patients, to outdoor faucet lock, valves for gas tank, propane tank, spigot wheels, and more! The lockout device is hardy, made of quality steel, powder coated for protection against corrosion and rust. A combination padlock with a user instruction manual for the lockout device is included in the pack.

Gascem Lockout Device is ONLY for handle design of CYLINDRICAL KNOB AND HANDWHEEL (BUT NOT LEVER OR CROSS). And, also for handles of suitable dimension. PLEASE CHECK YOUR HANDLE’S DESIGN & DIMENSION AGAINST THOSE IN THE PHOTOS ON THE LEFT OR DESCRIPTION BELOW BEFORE ORDERING.

The lockout device is essentially a no drill door lock that acts as a door knob lock. By locking up access to the doorknob, the door cannot be opened! This over knob lock or door knob cover is an effective yet simple solution as a door knob lockout device, lock for bedroom door without drilling.

Gascem Lockout Device, as a door handle lock or lock for door knob, is an easy and effective solution to deny access to trailer homes, hotel rooms, work place, offices, rental properties. It is ideal as a portable door lock. It is handy, compact and is quick and easy to install. It is simple yet effective as temporary door lock.

Gascem Lockout Device can lock door both from the outside and inside. An effective tool keeping autistic or dementia patients in as autism door lock or dementia door lock, or as a reliable door knob cover with lock and key to door knob child proof.

Gascem Lockout Device’s versatility extends to denying unauthorised access to faucet wheel, propane gas valve, handwheel valve, gas tanks or water spigot. The lockout device can also be an effective yet simple water spigot lock, as your outdoor faucet lock.

If you want to use your own padlock, please see Gascem product table immediately below for the same device but without the padlock.

Door knob lock door knobs with lock door handle lock mosceyou door knob cover lock defender security

The padlock user instruction below is still applicable to the padlock included in Gascem pack even though the Gascem padlock has 4 dials compared to the one illustrated in the diagram.

The default number is 0-0-0-0. To set your own combination, please follow these easy steps:

  1. Pull the shackle up to open the lock. See (a) on the diagram above.
  2. Rotate the shackle 90° counterclockwise and press all the way down. See (b) on the left diagram. Hold the shackle down and continue to turn it another 90° counterclockwise. See (c) on the diagram above.
  3. Set your own combination number by turning the dials. The padlock illustrated on the diagram above has 3 dials while the one included in Gascem pack has 1 more dial.
  4. Turn the shackle back as normal. The setting is complete.

To reset a new combination number, please repeat step 1 to 4 on the diagram above.

door lockout device door knob lockout door knob lock door handle lock prime line defender security
door knob lockout doorknob lock out knob lock lock cover handle lock

jamc103
2025-09-05 10:59:38
I use this to keep a bedroom closed in a house that I list on airbnb. It works as advertised and is easy to put on and off. It is a little large on the door knob that I have, but still keeps the room locked. If you're looking for something extremely secure, this might not be it, but it works fine for my purpose and was easier than changing the whole door knob.
Melissa Hart
2025-08-26 16:57:11
This is a super affordable and quality gadget that I like to have on hand.I host a lot of events at my house and like to have the option to lock things up. I can use this to lock up a room, and then it's locked from the outside (nobody in there). I've also used it occasionally when entertaining to lock up guests belongings. It just gives added peace of mind for all involved and at this price point, why not?
Nate Mcconnell
2025-08-14 11:27:12
If you need to to keep an animal that can use a doorknob in a room this might be good. A 14 year old got past it with east. Lock does not hold it closed tight enough. Waste of money.
cherrilla
2025-08-05 16:47:44
WORKED WELL FOR KEEPING MY KIDS OUT OF CERTAIN ROOMS WITHOUT A LOCKSMITH
Spidey
2025-07-14 18:50:13
The cover works, but don’t count on the lock.
Eliz
2025-05-11 18:46:11
Necesito ayuda porque uno de los candados no supe colocar la clave y no puedo cerrarlo y no puedo cambiar la clave
stork
2025-02-21 12:51:09
I bought this door handle lock to keep on my guest room door knob because a certain little person kept going in there messing it up. I wanted to keep the room tidy so it’s ready for a guest. It works perfectly and has sent the message about negative consequences for not respecting boundaries.
Person101
2025-01-09 17:50:26
You might as well just buy one without a lock, my lock came broken and won’t let me reset or close it. So just save your money😒