It knows when you sleep.
It knows when you leave.
The sensor that manages climate and heating on its own, even while the guest sleeps.
Presence Gen4 detects presence in the room using radar + PIR technology. Connected to Keyless®, it sends a signal to the system every time the state changes: "present" or "absent". Keyless automatically commands the associated RING device — with no human intervention.
The sensor understands what's happening.
And acts accordingly.
Four real situations, four automatic responses. No rules to set every time, no app to open.
The guest arrives
The sensor immediately detects presence in the room. Keyless commands the associated RING device: the air conditioner (or heating) turns on.
Climate: ON
The guest sleeps
The radar detects breathing even when the guest is still. The air conditioner stays on without interruptions — no night-time chills, no manual reactivations.
Climate: ACTIVE (breathing detected)
The window is opened
With the additional window sensor: if the guest opens the window, Keyless detects the event and automatically turns off the air conditioner. Zero waste, even with the window open.
Climate: OFF (window open)
The guest leaves
For temporary outings (going to the beach, going for a walk): the sensor detects the absence and turns off the air conditioner. On return, at the first detection, everything restarts on its own.
Climate: OFF (empty room)Don't turn everything off.
Set a comfort temperature.
To avoid negative feedback on social media, you can choose not to turn off the climate control but to automatically set it to a savings temperature when the guest temporarily leaves.
Presence Gen4 detects. Keyless decides. RING commands.
Three elements that work together in a completely automatic way, with no app to open, no rules to follow.
Presence Gen4
Professional presence sensor with dual radar + PIR technology, designed for residential and hospitality environments. Natively integrated into Keyless®.
mmWave Radar + PIR
The millimeter-wave radar detects presence even without movement, including the breathing of a sleeping person. The PIR completes detection for larger movements. Dual technology for zero false negatives.
Breathing detectionUSB-C power supply
Always powered, always active. Just a standard USB-C outlet — no batteries to change, no service interruption. Ideal for fixed installations in hotel rooms or apartments.
No maintenanceWi-Fi 2.4 GHz
Connects directly to the property's Wi-Fi network. No additional hub, no Bluetooth bridge. The sensor communicates directly with the Keyless cloud via real-time webhook.
Direct webhookShelly™ and Presence Gen4™ are registered trademarks of Allterco Robotics. Keyless® is not affiliated with Allterco Robotics. Keyless® provides the configuration, integration and technical support to operate the sensor automatically within its own ecosystem through the associated RING device.
Savings are guaranteed.
The environment thanks you too.
Real savings
Climate control and heating active only when someone is in the room. Measurably reduced consumption from day one, without changing guest habits.
Perfect at night too
The radar detects breathing during sleep. The climate control stays active all night without interruptions — no guest woken up by sudden heat or cold.
Zero negative feedback
With "friendly" mode the climate control never fully turns off: it sets to a savings temperature. The guest always finds a comfortable environment on return.
Fully automatic
Once configured, the system requires no intervention. It works 24/7, for every room, with no app to open and no dedicated staff.
How much would you save each month?
Enter your property's data for an estimate of monthly energy savings.
Calculate your energy savings
Estimate based on automatic air conditioner shutdown when no one is present
SAVINGS
SAVINGS
How many rooms are you paying for on your bill with no one inside?
Tell us about your property. We configure Presence Gen4 with your Keyless® system for automatic energy savings from day one.
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