Overview
RentEngine automatically generates access codes for supported lockboxes and smart locks when a prospect arrives for their scheduled showing. The system sends the prospect an access link, and the code is generated when they click it.
If location verification is enabled, RentEngine will also confirm the prospect's location before releasing the code — ensuring access is only granted when they're physically at the property.
Digital lockboxes
These are physical lockboxes that hang on a door or key box and generate access codes digitally through RentEngine.
Codebox
A code is generated for each showing. The prospect enters the code, presses Enter, then presses the Codebox logo to open the keybin.
Monthly fee: $2 per box/month, billed directly by Codebox (not by RentEngine)
Setup guide: Transfer your Codeboxes to RentEngine
Here is a guide on How to order Codeboxes
Managing inactive boxes: If a lockbox is no longer in use, move it to Inactive status in the Codebox dashboard (Manage Boxes > Inactive Lockboxes). This stops billing and prevents new codes from being generated. The box can remain connected in RentEngine, but it must be marked inactive in Codebox to stop charges.
SentriLock
SentriLock generates one code per showing. The prospect enters the code using ENT + code + ENT on the lockbox keypad.
Setup guide: Transfer your SentriLocks to RentEngine
Here is a guide on How to order Sentrilocks
Rently
Generates a numeric code with a default window of 2 hours before and after the scheduled showing time.
Smart deadbolts
These devices are installed directly on the door and generate PIN codes electronically. They don't require a physical key compartment.
IglooWorks
Supports one-time, hourly, and daily code types. Bluetooth is sufficient for generating PIN codes — the lock supports offline code generation. Prospects will need an internet connection to view their code through the RentEngine showing link.
Monthly fee: $3 per box/month
Bulk pricing available
Purchase: igloohome.co
Support: (888) 978-7265
TTLock
A cost-effective option with no monthly fees. Supports three code types:
One-time (OTP) — single use, valid within 6 hours of generation
Permanent — must be used at least once within 24 hours of the start time, otherwise it suspends
Timed — valid between a specific start and end time tied to the showing window
Purchase: Example on Amazon
Setup guide: Set up TTLocks in RentEngine
eRentalLock
Built with Schlage hardware. Generates a one-time code valid for the showing day.
Purchase: erentallock.com
Support: (855) 209-1498
Other supported deadbolts
Master Lock Vault — Generates a temporary access code with a specific validity window. Support: (800) 308-9244
PointCentral — Creates an access slot for the prospect tied to the showing time window. Support: (800) 457-5765
Manual lockboxes (with static codes)
If your lockbox is not digitally connected to RentEngine, you can enter a static code in the unit's access instructions. RentEngine displays that code to the prospect through their self-guided showing link. It stays active until you manually update it in the unit settings.