

🔐 Upgrade to keyless confidence — because your door deserves smarter security.
The Colosus Electronic Smart Door Lock NDL302 offers versatile keyless entry with PIN, RFID, remote, and physical key options. Designed for doors 35-60mm thick, it supports up to 50 users and features auto-lock, anti-theft alarms, and synchronization across multiple locks. Ideal for home, office, or commercial use, it combines modern polished metal aesthetics with robust security and responsive US-based customer support.
| ASIN | B07NTX6FN4 |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #159,969 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4,752 in Door Hardware & Locks |
| Brand | Colosus |
| Color | Silver - 4 Key Fobs |
| Control Method | Remote |
| Controller Type | Hand Control, SmartThings |
| Customer Reviews | 3.6 3.6 out of 5 stars (313) |
| Date First Available | June 28, 2018 |
| Finish | Polished |
| Finish Type | Polished |
| Included Components | 4 Key Fobs, 1 Remote Control, 2 Metal Keys, and a Standard Latch 60MM |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 9.99 x 7.5 x 6 inches |
| Item model number | e57b97ea-f837-44b9-bf70-d283306d884b |
| Lock Type | Keypad |
| Manufacturer | Colosus Inc. |
| Material | Metal |
| Number of Pieces | 4 |
| Product Dimensions | 9.99 x 7.5 x 6 inches |
| Recommended Uses For Product | Security |
| Shape | D-Shape |
| Smart Home Compatibility | Smart Home Compatible |
| Special Feature | Keyless, RFID Blocking, Remote Control |
| Special Features | Keyless, RFID Blocking, Remote Control |
| Style | Modern |
| UPC | 818073008157 |
J**N
Great lock, with the ability to add multiple entry passcodes, I like this lock.
Great lock, with the ability to add multiple entry codes. I'm very happy with this door handle's sturdy feel and contemporary good looks. It is relatively easy to install, but it is a bit troublesome to drill another hole on the door. Of course, the door lock is installed more firmly. It is easy to set a password to open the door, and it is very convenient to open the door with a IC card and a remote control. Anyway, I like this lock.
R**I
Not sturdy, screws stripped easily with regular use. Quit working after 3 weeks of installation
Placed lock on my workshop. Worked great the first week. After light use the screws that hold it together at the bottom started to strip and lock became very loose and quit working
R**.
Good quality smart door lock
The item is exactly as described. Installation instructions are stated on the packaging. For amateur DIY enthusiasts, it is relatively easy. Product works great. Setting up a passcode and adding a proximity card is still easy. The front and rear lock bodies are all made of metal, and the lock body is very firm, safe and reliable. Overall, I like this lock.
A**I
best keyless door lock for our medical office
I’ve been searching all over amazon for the right lock for our medical office for months. Finally decided to go with this one after emailing back and forth with their customer service rep to go over what we wanted out of a lock and how the features of this one could fit our needs. First before jumping into how good the product is, I just want to give a shoutout to James from Colosus who was so attentive to what we wanted and would even ask us follow up questions that made us realize we needed to approach this purchase as more of buying a system and not just a lock. Here is what sold us on this product: 1. The ability to connect all NDL302 locks with key fob/code 2. Open mode which keeps our front door open during business hours for our patients 3. Remote control which allows our receptionist to unlock the door for patients to come to the back right from her seat. 4. Key fobs for our doctors and codes for our other employees 5. The best 1-on-1 customer service reps that attend to you and follow up with you to make sure that everything is running smooth. If you’re looking for a digital lock system for an office, I would highly recommend talking to James from Colosus or just email or call them to see if this lock is right for your needs. I just wish they also had a team that would come install this because that would be the complete package.
D**S
Less than 2 years
It's been less than 2 years since I installed this lock. Now the outside handle will only operate if you lift it up instead of being able to push it down. Maybe is needs greased or something...
A**.
All parts 'not supplied with lock set. Not friendly for household door.
Purchased for the RF tag function. Lock is made for a standard home or business door that has a larger width and setback. Problem is lock ships with a 60mm latch not adjustable when standard door people buy this for required a 70mm latch. Not only I couldn’t install but now had to order the correct latch. Nowhere does it tell you that purching the lock set. Can’t recommend. Finally received longer latch after first order got lost in mail. Installed today without much trouble. Do not like that if you set the lock to be normally unlocked as normally you would have on a inside garage door during the day, there is no way to lock from inside without using the remote. Worse yet there is no way to tell the door is locked from the inside without opening the door and checking from the outside. For my application I wouldn’t buy again.
J**H
Works but has delay
The key fobs and clicker work but there is a delay before they work. Is not a very good fit for a lot of use.
A**A
easy to install I bet yah!
all my customers are satisfied and the manual is so easy to understand on programing, I do lot of rekeying locks at my work also outside work so this is so easy for me. the best thing with this is with remote and card no need wifi and comes wit regular keys
C**E
Good
Trustpilot
1 week ago
3 weeks ago