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Unique guest code
Create a new code for every booking, with activation and expiry windows that match check-in and checkout.
One package. One hub. Complete control.
The smart key box that tells you what happened next.
Stay Guardian combines a connected lock box, the Sense Guardian occupancy layer and one centrally positioned EM8 Hub. So instead of only knowing that a code was used, you can also see whether a guest appears to have arrived, whether the property is still occupied after checkout and when it is ready for cleaning.
No indoor cameras or microphonesNew code for every bookingLive occupied / vacant awarenessOne simple installation
Live property view
Apartment 04 — Cardiff Bay
Stay in progress
Current state
A complete picture, not just a lock event.
Occupied now
Living areaPresence detected
Likely guest activity following successful arrival.
Hall / entryAccess event linked
Code used at 15:24 for booking SG-2841.
15:24Guest code used
OccupiedCurrent property status
11:00Checkout due tomorrow
Lock box opened
Guest access code accepted.
Guest access code accepted.
Presence confirmed
Sense Guardian shows the stay is active.
Sense Guardian shows the stay is active.
Ready for cleaner notification
Once the property becomes vacant after checkout.
Once the property becomes vacant after checkout.
Why Stay Guardian exists
A normal key safe stops at the door. Stay Guardian continues through the stay.
The differentiator is Sense Guardian. It turns the system from a smart access product into an operational platform for short-term accommodation.
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Occupied or vacant view
See when the apartment appears occupied, when it becomes vacant and when someone is detected unexpectedly between bookings.
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Cleaner handover
Know when the guest has left so cleaners can be released at the right time, using their own controlled access code.
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Possible overstay alerts
If checkout time passes but the property still appears occupied, the portal can draw attention to it.
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One central EM8 Hub
The hub sits in a sensible central location and ties the access layer and sensing layer together.
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Privacy-first by design
No indoor cameras. No audio capture. Just the property status insights needed to run short-term accommodation properly.
The real differentiatorExplore the Sense Guardian layer
Sense Guardian is what makes Stay Guardian much more than a lock box.
Most access products tell you a code worked. Sense Guardian adds occupancy awareness, motion context and vacant confirmation so the host or operator can understand what is actually happening inside the property without invading guest privacy.
✓Arrival confirmation: combine the lock-box event with live presence to show that the guest has actually arrived.
✓Vacancy confirmation: know when the property appears empty after checkout.
✓Unexpected occupancy: flag when someone appears to be in the apartment between bookings.
✓Cleaner workflow: release the cleaner once the property is vacant and log the changeover journey.
What hosts actually need
Five questions answered in one place
- Has the guest arrived?
- Does the property still appear occupied after checkout?
- Is the apartment now empty and ready for cleaning?
- Has someone entered when there is no active booking?
- Can I manage all of this without installing indoor cameras?
Stay Guardian answers these questions by combining the access event with the occupancy context, not by relying on one signal alone.
The guest journey
From booking to ready-for-next-guest.
Stay Guardian follows the whole operational workflow instead of stopping at access control.
1
Booking added
The stay is entered or imported into the portal with check-in and checkout times.
2
Guest PIN scheduled
A booking-specific code activates only for that guest’s stay window.
3
Arrival detected
Access and presence combine to confirm that the stay has actually started.
4
Vacancy confirmed
After checkout, Sense Guardian helps show when the property becomes vacant.
5
Cleaner released
The cleaner receives access at the right time and the turnover record is created.
What makes it different
Compared with a standard smart key box
| Capability | Standard key box | Stay Guardian |
|---|---|---|
| Booking-specific access code | Yes | Yes |
| Separate guest / cleaner / maintenance codes | Sometimes | Yes |
| See if the property appears occupied | No | Yes — via Sense Guardian |
| Know when the property becomes vacant | No | Yes |
| Possible overstay awareness | No | Yes |
| Cleaner release based on vacancy | No | Yes |
| Privacy-first with no indoor camera | Yes | Yes |