Door or Window Sensor for Air Conditioner
VAT included. Free shipping in Mexico
Sentry - Smart and wireless presence sensor for automatic A/C shutdown
Sentry - Smart and wireless presence sensor for automatic A/C shutdown
Sentry - Smart and wireless presence sensor for automatic A/C shutdown
Sentry - Smart and wireless presence sensor for automatic A/C shutdown
Sentry - Smart and wireless presence sensor for automatic A/C shutdown

Sentry - Smart and wireless presence sensor for automatic A/C shutdown

Presence Sensor for A/C.
Turns off or sets the air conditioner to energy-saving mode when no one is in the room.
  • Secure


Technical Specifications

BrandCuby Smart
Wireless TechnologyBluetooth V5
Batery 2x AAA lithium battery Duration of 3 to 5 years
Detection area7x7 m at a height of 2.5 m
Detection methodHuman heat (PIR)
Dimensions8 x 8 x 2 cm
Weight80 g

Key Features

  • Automatically turns off the A/C when no one is detected in the room
  • Automatically turns on the A/C when someone re-enters the room*
  • Use the night mode to keep the A/C on while you sleep
  • Use the "Cuby Smart" mobile app to know when there was presence in the room*

*Use a Cuby (G4, G4 pro, or Cuby Aria) to utilize these functions

Delivery Times

Free shipping via DHL (in some cases FEDEX or another courier may be used). 

  • Average delivery time: 1 to 4 business days (extended areas may take longer).

Shipping may be delayed due to: 
  • Product availability. 
  • Causes beyond our control such as courier delivery delays.
Your shipment is insured in case of loss by the courier. 

For any questions, you can consult our shipping and returns policies.


Help Center: 
Warranty against defects: It comes with a 3-year warranty against manufacturing defects (it is a Mexican product, so the warranty is very efficient if needed).

Compatibility warranty: We offer a compatibility warranty with any type of A/C. If it is not compatible, we can add remote compatibility or refund your purchase (as long as it was purchased directly from us).

Satisfaction warranty: You have 30 days from the date of purchase to request a return. You can return the product, and we will refund the total amount of your purchase.
It works with any brand and model of air conditioner.

For more features, add a Cuby G4 or Cuby Aria.
Connection Diagram

Smart Presence Sensor

Energy saving at all times

    Turns off when no people are detected after a certain time


    Does not turn off the A/C while someone is sleeping in the room


    Use the mobile app to know the last time there was presence in the room

Installation in minutes

Configure with the free app

Download the "Cuby Smart" App, create an account, and set up the Sensor.

If you have a Cuby G4 (or similar), you can link it with the Sentry to enhance functionality and view presence data via the internet.

Place the Sentry

The Sentry is 100% wireless and includes double-sided tape for quick installation.

Just stick it to the ceiling and that's it. If you prefer, it can also be screwed in (screws and wall plugs included).

Monitor remotely

Use the "Cuby Smart" mobile app or PC ( to monitor the presence and movement history.

Know when there are people in each room that has a Sentry.



Is it compatible with my A/C?

Yes, Sentry is compatible with all brands and models of minisplit. We offer a compatibility guarantee.

If you have a Cuby Aria Smart Thermostat (for Fan and Coil, Package, chiller, etc.), Sentry is also compatible. This allows you to use presence-based on/off functionality with any type of air conditioner.

Some Fan and Coil air conditioning units (UMATCH and VRF) have an infrared receiver in their thermostat, so Sentry is also compatible with those units.

What warranties does it have?

  • 3-year warranty against manufacturing defects 
  • 30-day satisfaction warranty. 100% refund

Can it be used with ceiling fans?

There is no problem with ceiling fans as long as the Sentry is installed at least 1.5 meters away from the center of the fan.
Can 2 or more Cuby units use the same sensor?
Yes. It is possible for 2 or more Cubys to share 1 or more Sentry (or BEE) presence sensors, as the maximum number of presence sensors (or BEE) that can be monitored with a Cuby is 20.
How is it installed?
1. Use the "Cuby Smart" App to set up the operation mode (detection times, night mode, A/C protocol).

2. Stick it to the ceiling in the same room where the air conditioner to be controlled is located.
Does it require a Cuby G4 or Cuby Aria to function?
DOES NOT REQUIRE A CUBY G4 OR CUBY ARIA for the automatic shutdown function when no one is present.

REQUIRES A CUBY G4 OR CUBY ARIA for the energy-saving/setback mode function (increase temperature instead of shutting off), the state recovery function (automatic turn on) when the person returns, and the remote monitoring and configuration function.
How long does the battery last?
The duration varies from 3 to 5 years. Uses 2 AAA batteries (included and replaceable). 

It is recommended to use AAA lithium batteries (Energizer L92).

Does it need any connections? How does it control the A/C?

The sensor is 100% wireless. It includes an infrared transmitter which controls the A/C wirelessly (as if the remote control were sending a shutdown command).

When integrated with a Cuby, the Cuby is the one that sends the on/off signal.