The New Castle County Board of REALTORS® provides members access to the SentriLock® electronic lockbox system, a secure and convenient solution for managing property access during showings.
SentriLock technology allows REALTORS® to access lockboxes, manage showings, and verify property access through the SentriKey® Real Estate mobile app. This system helps ensure secure property access while giving agents a streamlined way to manage listing activity and client showings.

What SentriLock Allows You to Do
Through the SentriKey® mobile app and lockbox system, REALTORS® can:
Open lockboxes directly from their smartphone
Access showing instructions and listing details
Track property access activity
Schedule and manage showings
Build showing itineraries and plan routes between properties
Share listings and information with clients
The system creates a secure and efficient showing experience for agents, sellers, and buyers.
Benefits for REALTORS® and Their Clients
SentriLock provides several advantages for both REALTORS® and homeowners:
Secure access to listing properties
Digital lockbox entry and showing management
Real-time access tracking and accountability
More convenient showing scheduling
Greater protection for listing properties
Electronic lockboxes provide an added layer of security and professionalism while helping REALTORS® manage their showing activity more efficiently.
Getting Started With SentriKey®
Training & Resources
Key Facts about SentriKey Showing Service
ShowingService Features Summary
Access Management - A single solution for your client management and lockbox access needs
Dashboard & Calendar - Manage your showings and appointments easily
My Clients and Client Connect App - Digitally connect with your buyers and sellers
Having issues with your lockbox or mobile app?
Click the button to the right for SentriLock Support, or schedule a training.
Need Help?
For questions regarding SentriLock accounts, lockboxes, or system access, please contact:
Ashley Lubrano di Caruozzo
Director of Member Services & Social Media
📞 302-762-4800 ext. 114
📧 ashley@nccbor.com