Our most frequently asked questions

Review our help information by the specific topic you’re looking for.

SentriLock Phone Support

Have more detailed questions, need help with something you just can’t figure out? Call us 7 days a week from 8am – midnight EST.

US: 513-618-5800

Canada and Toll Free: 1-877-736-8745

Phone Renewals

For SentriCard® renewals or to obtain a One Day Code (if allowed by association) over the phone:

  • Have your SentriCard®, PIN, and a Lockbox ready
  • US Customers: 513-618-5800
  • Canada and Toll Free: 1-877-736-8745
  • Press 2 for the automated phone system
  • Follow along with the prompts

Watch our videos for the latest tips and step-by-step how-to

non-Bluetooth® Lockbox Shackle Release via SentriSmart (1:56)

See how to use SentriSmart® to release the shackle on your non-Bluetooth® NXT Lockbox

Creating, Sending, and Using a One Day Code (2:14)

Master the 1DC by watching this step by step tutorial

Bluetooth® REALTOR Lockbox / SentriSmart Tutorial (8:16)

Learn everything about our flagship lockbox and mobile app

SentriSmart – Key Compartment Access without Bluetooth® (0:46)

SentriSmart key compartment access is backwards compatible for non Bluetooth® lockboxes or for smartphones that do not have the latest Bluetooth® technology

For more videos, check us out on

Because practice makes perfect

Always assign your REALTOR® Lockbox to the listing.
    • There are many benefits to assigning your Lockbox to a listing. With the box assigned, it will be much easier to locate the appropriate box on the website when looking at your list of Lockboxes. This will also allow the Lockbox access report to show the assigned listing address. Click here for a PDF with step by step instructions to assign your Lockbox to a listing, or click here for our tutorial YouTube video.
Set up showing notifications.
    • You can get a text message or email notifying you that there has been a showing at your properties. And best of all you control when you receive them. Notifications can be received as they come available, or in a comprehensive daily email. Click here to view our instructional video to learn how to set up Showing Notifications for your account.
Always hang your REALTOR® Lockbox vertically.
    • Whether the box is on a door, a hand rail, or another location, you will want to hang the box vertically. The box is designed to allow water to pass through, should it be exposed to rain. If the box is laying on its side or back, it could gather water inside the box and become damaged or non-functional.
Renew your card after assigning a Lockbox to a listing, or making any customization changes.
    • Your card is a messenger between the Lockbox and the website. To ensure that all information gets to the website, it is best to renew your card after taking any actions at a Lockbox. Renewing the card several times a day, or before the expiration date, will not hurt the card.
Set up Card Expiration notifications.
    • When you enable this setting, you will receive a message the day before your SentriCard® expires. You can choose to receive the message as an email, a text message, or both! Click here to view our instructional video on setting up this feature. Note: This feature is only available for customers who have a three day or longer renewal period.
Link your SentriCard® to your Mobile Phone.
    • You can link your SentriCard® and mobile phone by calling our support line at: US Customers: (513) 618-5800; Canadian Customers: 1-877-736-8745. After linking your mobile phone number to your SentriCard® you won’t be prompted to enter your SentriCard® serial number anymore when you call SentriLock’s Customer Care Team. This allows for faster assistance when calling our automated line or live support. Click here to view our instructional video on how to link your SentriCard® to your mobile phone.