Who: SentriLock is the official lockbox solution for NAR. As the leading electronic lockbox manufacturer and service provider, 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. With SentriLock’s reliable, multiple key access method, including via mobile app or keycard, you will never miss a showing. See key benefits below.

How: Associations: Contact SentriLock here, phone 1-866-736-2322, or email

Brokers/Agents: SentriLock contracts with local REALTOR® Associations or MLSs to provide a variety of products and services to help REALTORS® manage Lockboxes, including our newest Bluetooth® version. You can purchase Lockboxes through your local Association or MLS, who can then authorize you for a SentriCard®, and where available, our 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 our Lockbox features. 

Technical Support: Contact SentriLock here, phone 1-877-736-8745, or email

What's New

SentriSmart™Mobile App Agent Safety Feature

The SentriSmart™ Mobile App includes the Agent Safety Feature allowing REALTORS® to alert contacts in the case of an unexpected or potentially dangerous situation.

How it works: When using SentriSmart™ app to open a lockbox, the Agent Safety Feature will launch. This feature will automatically alert your designated emergency contacts when you do not or cannot confirm you are safe.

Be smart: read lockbox safety tips
Watch the set-up and how-to videos
View more how-to videos

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.

Key Benefits

SentriSmartThe Bluetooth® REALTOR® Lockbox Advantage

  • Bluetooth® compatible
  • 100% assembled and supported in the USA
  • User-replaceable batteries
  • Holds keys, fobs, and cards
  • Compact, jam-free design
  • Above and beyond standard industry certifications

The SentriSmart™ Mobile App Advantage

  • Open lockboxes and releases shackles with smartphone or tablet
  • Receive instant showing notifications

The SentriCard® Advantage

  • Reliable alternative key
  • Custom membership ID card
  • Automate event attendance
  • Secure member voting
  • Automatic member surveys
  • Track open house visitors

One Day Code Advantage

Secure keyless access for:

  • Contractors
  • Appraisers
  • Out of area agents
  • Locked-out homeowners

Now Available: On the Spot Property Data

NAR members now have direct access to RPR® property data through SentriLock’s SentriSmart app. Read the announcement

Learn more at

Take a Tutorial

Core Values

Customer focused, innovative, passionate, resilient, intelligent, and trustworthy – SentriLock is a step ahead from other companies.

SentriLock Core Values

SentriLock Supports Boys & Girls Club

The spirit of volunteerism is strong at SentriLock. SentriLock has hosted Holiday Parties and special events including a "Back to School Supply Drive" to benefit their local Boys & Girls Club. Learn more.

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