NB IoT Smart Padlock

NB IoT Smart padlocks improves the safety, security and controlled access of assets helping save companies time and money, and delivering peace of mind.

NB IoT Smart Padlock    




  • Waterproof for outdoor use IP67 rating

  • CE, FCC and NB IoT certified

  • Suitable for gates, sheds, storage boxes, electrical meters, garage doors, cabinets

  • Built-in alarm with anti-tampering sensors – three alert modes (lock activity, tamper, and forced entry) lets you know when someone is coming and going and communicates potential security threats with text notifications and alarm siren.

  • Reinforced stainless steel with armored glass numberpad

  • Licenced for use on the global NB IoT network

  • No external wiring

  • Battery status notifications

  • No onsite infrastructure required

  • NFC included for NFC card/NFC token use (use our digital keys app (Android 5.0 and above) to write to NFC cards/tokens - 3 NFC cards included per lock purchase)

  • Remote unlock over NB IoT network with our FREE digital keys smart phone app and Digital Keys Management Platform 

  • NFC unlock with digital keys app (select Android phones 5.0 and above, with NFC in the phones).

  • 2 Year Warranty

  • Protective cover (as seen in photo opposite)


Opening Methods; PIN, card, fob, phone, cloud/PC software

Communications via; U-Blox SARA R12 NB IoT/LTE/CAT M-1/2G fallback/GPS

Smartphone and Keycard unlocking 

With day and time limits you can control, a scheduled digital key is perfect for anyone only requiring access for a short period, or anytime – generate digital keys and email it to co-workers, contractors, visitors in seconds.


You can also use the digital keys app to write to NFC keycards.

Tracking - know when and where staff are

Keep posted on your staff, contractors, volunteers comings and goings with notifications to your phone every time your padlock is unlocked – history displays all activity of locking and unlocking.


Data is also stored in the lock management software and can be downloaded as CSV, XCL files for data analytics.

Built-in alarm with anti-tampering sensors

With three alert modes (lock activity, tamper, and forced entry) lets you know if there is a potential security threat with text notifications, and warning siren.

Tech Specs


L10.0mm x W8.2mm x B4.7mm

Rod thickness W0.8mm L6.9mm


NB-IoT (part of 5G standards), NFC (local opening with keycards and NFC phones), LTE-M, CAT-M (2G/3G fallback)


4AA standard alkaline batteries

2 years life (approx) 4-5 openings a day.

IoT Platforms

Amazon Web Services (AWS) Device Management Platform (hosted in local countries)

Global Data Service Platforms (provided by local Mobile Operators)

Digital Keys IoT platform/software/apps hosted at AWS IoT core web server in local countries


0.9 Kg


-50C to 60°C (designed for outdoor use) 20 to 99%RH

SIM card

Nano iSIM on participating local mobile network operators


Stainless steel outer core with anti-tampering screws

Armoured glass numberpad

Synthetic rubber cover

Unlocking methods

PIN (time-sensitive), Keycards (time-sensitive)

iOS, Android smartphone app unlocking, remote unlock in software

Access Control Management

Digital Keys Apps (iOS, Android)

Cloud-based smartlock management software


NB IoT module - Ublox SARA - R410M 

NFC Mifare, CPU


CE, FCC, NB-IoT (GSM), IP66 Waterproof


2 years

What's in the Box​

1 NB IoT smart padlock

3 NFC keycards

SIM Card

1 quick start guide

You'll also need...​

You’ll also need to download the FREE Digital Keys app from the online app stores 


Step 1

Download and open the Digital Keys app then follow the instructions

Step 2

Activate your NB-IoT smart padlock in the Digital Keys app

Step 3

Put your NB-IoT smart padlock in your desired locations (gate, box, etc)

Step 4

Start managing and controlling access of your NB-IoT smart padlock

Take Advantage of Mobile Network Security

NB IoT Smart Access is controlled by a number of layers of security implemented throughout the system.​

When you buy our security products, you are also buying from your local telecommunications company as they certify our product as secure and effective to work on their proven secure network. 


If you can trust your local telco with your mobile phones and broadband, you can trust them with your physical security.

For use everywhere and anywhere

You can use Narrowband Smart Padlock anywhere - its waterproof and tamper proof.





Compare Products




NB-IoT, LTE-M, CAT-M, 2G, 3G fallback

Onsite infrastructure


Methods of unlocking

Card (NFC), PIN, software/smart phone unlocking 


From $250-$350 per door cost*


Live audit trail to cloud/smartphones/software

Digital Keys App

Time-limited, access control and unlocking

Access Management

Staff or end-user operated online remotely, also can be managed automatically without staff


Use API's to interface to third party software/apps




4 Standard AA alkaline batteries - 2 years life

*Prices vary depending on volume and exchange rates


None - closed onsite system

Onsite infrastructure

Onsite PC, card writer box, handheld programmer, controller box, wiring

Methods of unlocking

Card only


From USD $300-$3000 per door cost*


Physically retrieved from lock with programmer

Digital Keys App


Access Management

Onsite staff needed


Use API's to interface to third party software/apps


Locks wired to each other and onsite PC through walls and ceilings


Mains powered

*Prices vary depending on volume and exchange rates

NB IoT Smart Padlock FAQ's

We have our own app and software, do we have to use your app and software?

We have built API's so that you can add all the features of the Digital Keys apps and software to your own apps and software. Visit our API's page to learn more. To get a copy of our API's and to start building your integration email us at info@digitalkeys.io

When and where can I buy the NB IoT smart padlocks?

Our NB IoT smart padlocks will soon be available to purchase on our website or at your local distributors or local telco's. Subscribe to our newsletter by sending an email to info@digitalkeys.io to get ongoing updates to availability.

Will the NB IoT smart padlocks work in my country?

NB IoT networks have been rolling out in dozens of countries across the planet. Please check our page 'NB IoT Network Map' for country rollout details. Also please send us an email with your country and we will chase up with our telco partners about NB IoT network availability around you.

How strong/heavy duty/rugged is your NB IoT smart padlock?

The padlock casing we use in made of stainless steel with armored glass numberplate (to enable NB IoT signals and commands to penetrate). The casing is from a top selling RFID/GPS padlock (we use our own NB IoT PCB's), that has sold hundreds of thousands over the last few years for use on shipping containers, sheds, trailers etc, so it is heavy duty and can handle almost any conditions thrown at it.

Do you have discounts for bulk volume purchases?

Yes, please email us at info@digitalkeys.io to discuss your needs and wants.

How do you get such a long battery life (around 2 years) as compared to only a few months with other connected locks (e.g Wi-Fi/BLE)?

Our locks remain in sleep mode most of the time, conserving battery, and are only woken up for a couple of seconds when you need to use the lock (e.g to unlock it, get live audit). All other connected locks are constantly on and connected to the internet sucking up battery life.

Where does the data lie, and who controls the data of the NB IoT smart padlocks?

Our cloud servers are hosted at Amazon Web Services (AWS) in your local country. No one has access to your data except you. If you want to host the system on your local servers, please get in touch with us to discuss further at info@digitalkeys.io

Where is my data held and who controls it?

Your data is safely secured and managed at your telecommunication Company who you sign up with for the connectivity services. All our smart access system services and data rests with the telecommunication companies who follow strict data legislation, standards and policies to ensure the highest levels of data security, privacy and integrity. If you can trust the telecommunication companies with your mobile phones, and mobile data, then you can trust them for NB IoT smart access.

Is there ongoing costs to use the NB-IoT smart padlocks?

Yes, there are connectivity costs to use our NB IoT smart padlocks on local telecommunication companies mobile networks. The locks connect to mobile networks like mobile phones do. But unlike mobile phones, the smart padlocks use very little data - on average less than 5-10 MB a month. For example unlock commands and data retrievals (such as for the live audit) are around 8-10 bytes on average.This means we can take advantage of the lowest data plans offered by local mobile network operators for utilising their NB IoT networks. For example in some European countries you can pay a one-time fee of 10 Euros when you purchase our smart padlock and receive a data flat rate of 500MB to use over 10 years on Deutsche Telekom's NB IoT network - click here to see more. Thats right 10 Euros for 10 years. Prices depend on different carriers in different countries. Please check with your local carrier or our distributors for pricing, or send us an email info@digitalkeys.io if you would like to know more.

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