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Greater Capital Area Association of Realtors®

You can also visit their support page for how-to videos, FAQs, and more. 
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SentriLock Updates 

As REALTORS®, we subscribe to a strict code of ethics and hold respect for property as one of our most valued tenets. GCAAR has adopted the SentriLock Rules and Regulations, revised April 2021, to guide members' operations of and interaction with each other around lockboxes. The Board has also adopted the SentriLock Citation Policy and Schedule to allow for efficient and streamlined enforcement of the Rules and Regulations.


June 15: GCAAR now offers SentriLock reciprocity with DAAR

GCAAR continues to seek out new ways to make our members’ jobs as REALTORS® easier. Last month, we announced a reciprocal agreement with Northern Virginia REALTORS® (NVAR) to allow full, shared access to our agents’ SentriLock lockboxes. And now, we’ve signed the same agreement with the Dulles Area Association of REALTORS® (DAAR)! 

What does this mean?

  • DAAR’s SentriLock lockboxes are now set up to allow seamless access – enabling you to show your clients listings in the Dulles region more quickly, and allowing DAAR members to enjoy that same privilege in our area.  

  • This access eliminates the extra step of REALTORS® having to contact GCAAR when showing a listing outside of our local area, which streamlines the showing process.  

  • All members who are licensed in Virginia now have full access to DAAR lockboxes in the region. 

  • Lockboxes now work in NVAR, DAAR and GCAAR areas and will not need customization to move between areas/jurisdictions.  

Agents may only use lockboxes, the SentriLock mobile app and Smart Cards in states where they maintain a current license. Be sure to review GCAAR’s newly revised SentriLock Rules & Regulations to make sure you’re up to date. 


May 13, 2021: Trade in your old SentriLock lockboxes for a discounted Bluetooth box!

SentriLock is going cardless on January 1, 2022, which means you'll want to start using the SentriKey™ Real Estate app NOW. GCAAR and SentriLock are offering you a discounted trade-in program for $99 + sales tax. Upgrade your non-Bluetooth SentriLock lockbox by trading it in for a current-model Bluetooth SentriLock lockbox. GCAAR will even recycle your old one!

  1. Contact GCAAR at with the serial numbers of the lockboxes you would like to trade in.
  2. GCAAR will confirm your lockboxes are eligible for trade-in with SentriLock.
  3. You then pay the invoice for your new, discounted lockboxes on GCAAR’s website.
  4. GCAAR will schedule a curbside pick-up appointment for you to pick up your new lockboxes. 


May 10, 2021: GCAAR now offers reciprocal SentriLock access with NVAR

GCAAR is making it easier than ever for you to show listings in northern Virginia. We have entered into a reciprocal agreement with the Northern Virginia Association of REALTORS® (NVAR) to allow full, shared access to our agents’ SentriLock lockboxes

What does this mean?

  • The SentriLock lockboxes associated with NVAR are now set up to allow seamless access – enabling you to show listings in northern Virginia more quickly. At the same time, your SentriLock lockbox from GCAAR allows NVAR members to enjoy that same privilege when showing listings in our area. 
  • This reciprocal access eliminates the extra step of REALTORS® having to contact GCAAR when showing a listing outside of Washington, D.C. and Montgomery County, which streamlines the showing process.  
  • All licensed members will now have full access to NVAR lockboxes in the region.
  • Additionally, lockboxes will now work in both jurisdictions and will not need customization to move between GCAAR and NVAR.  

Remember: you can only use lockboxes, the SentriLock mobile app and SmartCards in states where you maintain a current license.


 SentriLock resource guide

We have compiled the below resource guide to provide some best practices, helpful tips and frequently asked questions. Please also take advantage of SentriLock resources.

If you do not see the answer to your question below, please contact SentriLock directly at 513.618.5800 or

Going cardless/SentriKey Real Estate app

SentriLock is going cardless starting in 2022, so please start getting comfortable with the SentriKey Real Estate app. You can download it for free from the App Store and Play Store, as well as on your Apple Watch. Use the same login credentials you use to log into the SentriLock website.

Here is a walkthrough of the SentriKey app, or try the training program. Not sure if you'll be able to access a lockbox without a SentriCard? Try one of these options

Whenever you log into your SentriKey app from a new mobile device, you will need to contact GCAAR to provide access. Simply call our Member Services team at 301.590.8769 or send us an email at and we'll be happy to help. Please note that you can only have two devices linked to your SentriKey account at a time.


Technical support and warranty questions

If you are having technical difficult, please contact SentriLock at 513.618.5800 or GCAAR cannot troubleshoot technical issues nor handle warranty questions.


Common answers and how to guides from SentriLock

Did you know SentriLock has how-to guides for many common questions? We have linked to a few below, but be sure to browse SentriLock’s YouTube page for more helpful tips and tricks. 


Transferring a lockbox between agents

Note:  GCAAR strongly discourages its members from purchasing non-Bluetooth lockboxes as SentriLock is transitioning to go cardless by 2022. Lockboxes that do not have Bluetooth functionality will require additional steps to use without the cards. 

In order to transfer ownership, the original owner should send an email to with the serial number(s) of the lockbox(es) to be transferred, as well as the name of the new owner. 


SentriLock access across the DMV

Your SentriLock access is dependent upon your real estate licenses, and you can always check your access by logging into your SentriLock account, clicking the settings icon, then clicking “Manage My Account.” Several areas, however, require special access. Please allow up to three business days for your reciprocity request to be process by the below areas. 

Use the below steps to gain access to the following areas: 

  • Garrett County Board of REALTORS®: Complete the reciprocity forms and return to the GCBR office. 

  • Cecil County Board of REALTORS®: Obtain the Cecil County Board of REALTORS® SentriLock Access Agreement form by calling CCBR at 410.398.4844, and submit completed form to CCBR. 

  • Coastal REALTORS® (Somerset, Wicomico, Worcester County, Maryland): Complete the SentriLock Reciprocal Key Access Agreement Form. After completing your section, email the form to, then we will submit on your behalf. 

    Virginia: Send an email to with your Virginia real estate license number.


Helpful tips

The Message Center: Don't ignore the messages in your SentriLock Message Center! That's where you'll find important information such as low battery notifications, outstanding bills and one-day codes.

Extend the life of your lockbox batteries: Did you know your lockbox batteries can last up to five years? Get the most out of them by closing the SentriLock lockbox key compartment while showing properties.


If you do not see the answer to your question above, please contact SentriLock directly at 513.618.5800 or You can also reach out to GCAAR's Member Services team at 301.590.8769 or, but because SentriLock boxes and the SentriKey app are proprietary products, most questions will have to be answered by SentriLock directly.