Connected access means better security and control 

More secure, more convenient and more efficient

How our NB-IoT smartlock system works

Our smartlocks connect to the internet with a new technology built specifically for device to cloud communications so that you have the best security for your assets and buildings, and you are always in control of who goes where at what time with live notifications. See how it works below.

Hosted in public or private  cloud environment for backend, apps/software + routes to Global IoT Network

Digital Keys

NB-IoT Cloud Platform

Global IoT network/platform 

Exists on existing mobile networks - available on 160 Nationwide Mobile Networks in over 60 countries^

NB-IoT smartlocks

Digital Keys app

and Access Management Software


Data transfers, communications via UDP, TCP, COAP



Local unlocking with NFC^^

Developer API

2048 bit

RSA encryption

2 Factor Authentication

Mobile Network


256 Bit SSL 


Download apps for free from online stores to control access and unlocking for time-sensitive use 

Smartlocks include iSIM's + 30MB pre-paid data* & IoT Modules (NB-IoT, LTE-M, LTE, 2G/3G)**



3GPP Security


Access Management Software

A user generates a request for a digital key for a specific lock in a booking calendar for any future date and time. 

Digital Keys NB-IoT Cloud Platform

Request arrives here, it is assigned a unique ID, and stored in the database.

Digital Keys App

Unique ID is sent to users app - it appears as an unlock button, and waits to be pressed during selected time period

Global IoT Network

User hits app unlock button which sends command into the platform to check validity/time and if valid, command is routed into network

NB-IoT Smartlocks

Command arrives at the lock SIM, the lock wakes up, and activates the motor to unlock. Message is sent back to database about event

Protocols and security features

All communications/data are encrypted and sent with special IoT/mobile network protocols as prescribed by GSMA/3GPP

Your data is protected

Only you have access to your data, which is hosted in a public cloud such as Amazon Web Services in your local country, or our platform can be hosted in your private cloud environment. Your data is secure and doesn't leave your own country.

Features to help you better manage your assets

Smartphone unlocking

A simple, user-friendly, end-to-end smart access control system for use anywhere. 

Easy Installation anywhere


It is not restricted by onsite power and onsite network infrastructure.

Higher Security with NB IoT


NB IoT is the only licensed IoT communications technology globally, offering enhanced security

Connected, cloud system


Facilitates physical security/access management of in new ‘connected’ ways

Better than Wi-Fi/BLE rivals


A system more reliable, more affordable and more secure than rival Wi-Fi/BLE smart locks

Many Opening Methods


Unlock with smartphone apps, software, time-sensitive PIN, NFC cards/tokens, metal key 

Less Costs


No physical labour involved in key management and distribution (end-user self automated)

Safety Tracking


Meet Occupational Health and Safety requirements for employee tracking/reporting 

Better customer experience


Stress free and easy access to the rented or managed property with digital keys

Important Information 

*All our NB-IoT smartlocks come fitted with a free iSIM card and 30MB of pre-paid data to connect to the Global IoT Network (NB-IoT, LTE-M)

Our iSIM's work in over 20 countries and last approximately 2-5 years (based on 3-6 activations a day). See available countries on our network coverage map page here.

^^Local NFC unlocking (with NFC compatible phones, cards, rings etc) can be used after programming the smartlocks once for time-sensitive use over NB-IoT network and writing to cards with digital keys app

**NB-IoT smartlocks powered by 4AA standard alkaline batteries (Life approx 2 years with 4-6 activations a day) or use 2 2450mAH lithium thionyl chloride 3.6V batteries to extend life to approx 5 years

From the image above, you can immediately see one of the key benefits NB IoT smart access has over other brands, and that is there is ‘no onsite network infrastructure’.

When smart locks first came onto the market a couple of years ago, they were targeted at homeowners, with benefits marketed such as; Give a digital key to a cleaner which only works from 11am-1pm every Wednesday, but there is so much more...

Learn More

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Send us a message, request information, or talk to a Digital Keys representative

Contact Us

L1/1 Tonsley Blvrd, Tonsley 

 SA, Australia, 5042

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NB-IoT Technology


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