WhoSentriLock is the official lockbox solution for NAR. As the leading electronic lockbox manufacturer and leading provider of property access management solutions, SentriLock operates in support of REALTORS® and the industry, offering an easy to use, reliable and secure system. Fundamental core values guide every action and decision to provide the best service and experience for your benefit.

What: The SentriLock Bluetooth® REALTOR® Lockbox is the most secure, durable, and versatile within the industry. SentriLock’s reliable, multiple key access method, including via mobile app or keycard, helps to efficiently gain property access. See key benefits and learn more about the SentriSmart™ Agent Safety feature below.

Associations: Increase Awareness

SentriLock works directly with associations to help educate members on the benefits of the industry’s most secure and durable lockbox solution. SentriLock offers an online marketing toolkit that includes ready-made flyers, social media posts, newsletter content, and graphics, plus information on upcoming webinars.

New marketing materials highlight SentriLock’s Bluetooth® REALTOR® Lockbox, multiple key access method, including via mobile app or keycard so members will never miss a showing. Visit SentriLock for updated sample tweets, Facebook and LinkedIn posts, plus details on the latest product enhancements.

How: Additional information about SentriLock’s lockbox and services is available at

Associations: Contact SentriLock directly at 866-736-2322,email or visit

Brokers/Agents: SentriLock contracts with local REALTOR® Associations or MLSs to provide its products and services to REALTORS® . You can purchase lockboxes through your local Association or MLS, who can then authorize you for a SentriCard®, and where available, the SentriSmart™ Mobile App, which allows you to manage your Lockbox inventory, generate secure One Day Codes for access to your Lockboxes, view access logs, and control your personal settings related to lockbox features and more.

Technical Support: Visit for issue-specific contact information or connect with SentriLock at 877-736-8745, or

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What's New


As a member-centric organization, NAR’s goal is to ensure REALTORS® have a competitive market advantage in every area of their business and the information and tools they need to best serve their clients. In 2003, NAR’s investment and ownership of SentriLock was in response to a member-driven mandate for competitive choice in the electronic lockbox market.

It’s one of the association’s most successful member-driven business ventures. Now celebrating 15 years as NAR’s official lockbox solution, SentriLock is the leading electronic lockbox manufacturer and service provider for the real estate industry and is noted for attributes including stability, superior technology and exceptional customer service. Its solutions continue to improve homeowner and agent safety, flexibility and accountability.

Beyond providing members with the latest advances in technology to help grow their businesses, SentriLock is also known for its award-winning customer care; its knowledgeable service team provides world-class support seven days a week from its facility in the Cincinnati suburb of West Chester, Ohio. All of SentriLock’s lockboxes are 100% assembled in America by an equipment manufacturer in Lexington, Kentucky.

Learn more about SentriLock.

The SentriLock System Advantage 

The SentriLock Bluetooth® REALTOR® lockbox helps make showing and selling properties safe and efficient. This video highlights system advantages and newest features.

Agent Safety

SentriSmart™ Mobile App Agent Safety Feature

The SentriSmart™ mobile app includes the Agent Safety feature providing an automatic way to alert select contacts in the case of an unexpected or potentially dangerous situation.

How it works: When using the SentriSmart™ app to open a lockbox, the Agent Safety feature will launch. After a set time (approximately 90 seconds, or as determined by the agent), the app will prompt for a status update and will alert your designated your emergency contacts if you do not or cannot confirm you are safe.

For more information, or for assistance, connect with SentriLock or watch the set-up and how-to videos.

Be smart: read lockbox safety tips.

Take a Tutorial

Other tips, video tutorials and how-to resources are available at

Program availability and eligibility requirements may vary by partner program. See partner websites for details, terms and conditions.


Housing Opportunity Program

Programs, grants, trainings, and resources that help REALTORS® and REALTOR® associations expand housing availability and homeownership opportunities.