WhoSentriLock is the official lockbox solution for NAR. As the leading electronic lockbox manufacturer and 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 SentriGuard® REALTOR® Lockbox is the world’s most secure, durable, and versatile in the industry. Independently tested, this lockbox is certified with an approved attack rating. With the longest-lasting battery on the market and a battery back-up, you won't be left out in the cold. Designed to be accessed using Bluetooth® technology in conjunction with the SentriKey® Real Estate App for quick, easy access.

You are in control with proving temporary access to contractors, painters, or third-parties. Grant specified times/days through SentriConnect® or Flexcodes™. Receive notification of who enters and leaves the property, giving your client peace of mind.

SentriKey App School

Using the SentriKey® Real Estate app gives you access to enhancements to manage your business more efficiently and securely. Sign-up for free.

SentriKey Showing Service™

The SentriKey Showing Service™ is the first and only combined solution for managing showings, customer experience and property access. It is an optional, subscription-based service that associations and MLSs can offer to their members. This innovative, easy-to-use, and feature-rich solution from your trusted real estate technology partner SentriLock, is an alternative to current showing service offerings in the market.

For additional information, please review the key facts or visit

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 to use the SentriKey® Real Estate 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 and click Contact Support for issue-specific support or connect with SentriLock at 877-736-8745, or

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Why SentriLock?

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. With nearly 20 years as NAR’s official lockbox solution, SentriLock is noted for attributes including stability, superior technology, and exceptional customer service. Its solutions continue to improve homeowner and agent safety, flexibility, and accountability.

Here’s an informative Case Study to highlight SentriLock’s value to REALTORS®.

Beyond providing members with the latest advances in technology to help grow their businesses, SentriLock is also known for its award-winning customer care, and 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.

Agent Safety

The SentriKey® Real Estate app includes the Agent Safety feature that enables REALTORS® to alert predetermined emergency contacts if an unexpected or potentially dangerous situation develops while showing a home to prospective buyers.

How it works: When using the 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 emergency contacts if you do not or cannot confirm you are safe.

For more information, or for assistance, connect with SentriLock or watch the video on enabling the Agent Safety feature:

Association Resources

Associations: Increase Awareness

To help you help your members get the most out of this member benefit, SentriLock offers an online marketing toolkit that includes ready-made flyers, social media posts, newsletter content, and graphics. Access resources.

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