A realtor lock box is a device used across the real estate industry to store property keys. Its function is to grant secure, monitored access to authorized real estate professionals, ensuring only those with proper credentials can enter a listed home. Accessing these boxes requires recognizing the specific technology involved and following established security protocols.
Understanding the Different Lock Box Systems
The method for accessing a property key depends on the technology present in the lock box attached to the home. The real estate market utilizes two main types of lock box systems to manage property access.
Electronic/Bluetooth Access Systems
These systems represent the most common modern security solution, often provided by companies like SentriLock or Supra (iBox). Access relies on proprietary software, typically an eKey application installed on a smartphone or a specialized physical device. The app uses Bluetooth synchronization or generates a unique, one-time access code to initiate the unlocking sequence.
Mechanical/Combination Access Systems
Older or simpler systems operate purely on a physical mechanism that requires a specific numerical code. The user enters this combination using dials or a keypad on the box’s face, which then releases the key compartment. These devices are straightforward but lack the electronic logging and audit trails of modern electronic systems.
Verifying Your Credentials and Authorization
Proper preparation is necessary before attempting to unlock any secure key storage device. An individual must hold active membership in a local or regional real estate association to obtain the necessary proprietary access technology. This membership grants the ability to install and sync the required software, such as the SentriLock or Supra eKey application.
The listing agent for the property must also authorize the showing, typically by assigning a specific one-time PIN or an authorized time window within the electronic system. This pre-authorization ensures the system recognizes the user’s credentials at the time of access. Attempting to gain entry without these valid, pre-approved credentials constitutes unauthorized access and breaches security protocol.
Step-by-Step Guide for Electronic Lock Boxes
The process for electronic lock boxes begins with waking up the device, often by pressing a specific button on the unit’s face. After activation, the authorized professional must open the relevant eKey application on their synchronized smartphone or device. The user confirms their identity within the app by entering their secure PIN or biometric data, establishing a secure connection with the system server.
Once authenticated, the app uses Bluetooth to communicate directly with the lock box or generates a unique, time-sensitive code for the property. The user then enters this multi-digit access code onto the lock box’s keypad. Correct entry of the code causes the lock box to register the secure connection and confirm the user’s authorization against the central database.
Upon successful verification, the lock box emits an audible signal, indicating the key compartment is ready to be released. The user then operates the physical release mechanism, typically a spring-loaded lever or a sliding door. This action causes the bottom compartment to drop down, allowing the user to retrieve the property key. The electronic system automatically logs the exact time and identity of the professional who accessed the key, creating a permanent audit trail.
Step-by-Step Guide for Mechanical Lock Boxes
Accessing a mechanical lock box requires a precise sequence of actions involving the numerical dials. The first action involves clearing the previous combination from the device, usually by turning all the dials to the zero position or utilizing a dedicated reset lever. Obtaining the correct 4- or 5-digit code is necessary, as it is provided by the listing agent and is not generated by an app.
The user then aligns the correct code sequence on the dials. Once the combination is correctly set, the user operates the release mechanism, which might be a side lever or a pull-down tab. This causes the key compartment latch to disengage, allowing the front face or bottom section to open.
This simpler system relies on the user’s diligence to maintain security after retrieving the key. The combination dials must be immediately scrambled to prevent unauthorized re-entry.
Addressing Common Access Issues and Troubleshooting
Electronic lock boxes frequently fail due to power loss, often resulting from a depleted battery, especially during colder months. If the box is unresponsive, many modern units include a small, covered emergency port designed for a nine-volt battery. Holding a fresh nine-volt battery to these external contacts can temporarily power the unit long enough to complete the unlocking sequence.
Another common issue is an invalid access code, which occurs when a code has expired or was not authorized by the listing agent. In this situation, the lock box typically flashes a red light or refuses to generate a connection, requiring the user to contact the listing agent directly for a new or extended access window. Jamming can also prevent access, often caused by dirt, debris, or a key being improperly placed inside the compartment. Applying gentle but firm upward pressure to the key compartment while entering the code can sometimes alleviate minor jamming issues.
Security Procedures After Accessing the Property
Once the showing is complete, the authorized professional must return the key immediately and secure the property. The retrieved key must be placed back into the lock box compartment before the professional leaves the property’s vicinity. Ensure the compartment is fully closed and securely locked, which is often confirmed by an audible click or a visual indicator light.
The key compartment should be tested with a light tug to verify the latch has re-engaged and the key is secured. For mechanical combination boxes, the dials must be scrambled immediately after closing the compartment to prevent the code from remaining visible. Failing to secure the key or the box properly transfers liability and compromises the security of the vacant property.

