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Prime Line Door Knob Lock Out Device Review
Last updated - August 3, 2025
Verdict overview
- Easy installation 9.4
- worth the money 8.4
- Simple to use 9.1
- Durability 8.6
Pros
The device prevents people from turning the knob and accessing the keyhole.- It is quick and easy to install.
- It is durable and built to last.
Cons
Locking mechanism vulnerable.
Tech specs
| color | Gray |
| batteries included | No |
| controller type | Ring |
| special feature | Key Lock |
| warranty description | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |
| lock type | Key Lock |
| customer reviews | 4.4 4.4 out of 5 stars 2,581 ratings 4.4 out of 5 stars |
| finish | Gray |
| connectivity protocol | Wi-Fi |
| product dimensions | 3.75 x 2.25 x 2.75 inches |
| shape | Round |
| item weight | 1.3 pounds |
| special features | Key Lock |
| item package quantity | 1 |
| control method | App |
| size | 1 Pack |
| material | Diecast |
| finish type | Gray |
| item dimensions lxwxh | 3.75 x 2.25 x 2.75 inches |
| style | Device |
| batteries required | No |
Product Overview
As a professional reviewer who has tried and tested many products, I can confidently say that PRIME LINEs Door Knob Lock Out Device is one of the best products Ive ever used. It is a great solution for those looking for an effective way to prevent access to a keyhole or door knob.
This lock out device is made from diecast construction with a gray painted finish, making it both durable and aesthetically pleasing. It also features an O ring that holds the cylinder in place when the device is locked, which ensures that the cylinder cannot be removed when the device is closed. In addition, installation of the lock out device is quick and easy simply place it over the door knob, lock it, and youre done!
The product is perfect for rental properties, evictions, home sales, job sites and in home or office storage as it prevents access to keyholes in round door knobs of up to 2 7/16 inches outside diameter. It also comes with two keys for added convenience.
I found this product to be quite user friendly. The instructions were easy to follow and I found the product easy to install and use. The value for money was also excellent although I felt it was slightly more expensive than some other similar products on the market, it still offered excellent quality at a reasonable price point.
Overall, I would highly recommend PRIME LINE s Door Knob Lock Out Device to anyone looking for an effective way to prevent access to a keyhole or door knob. It offers excellent quality at a reasonable price point and installation is quick and easy just place door knob lock out device over the door knob, lock and go! This product is ideal for rental properties, evictions, home sales, job sites and in home or office storage as it prevents access to keyholes in round door knobs of up to 2 7/16 inches outside diameter.
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