Conditions, not surveillance
Our monitoring works without cameras or conversation recording. It provides information about property conditions, not the identity of individual guests. An occupancy estimate remains an estimate.
Engineering for everyday hospitality operations.
MasterMind · Tech develops electronic devices and software for hospitality monitoring. We bring sensing together with guest communication and operational automation, so information about a property can lead to a useful next step.
Our journey
MasterMind · Tech began with a question: how could research become systems people could use in practice? Early development focused on sensing, electronic devices and monitoring indoor air quality.
Our early monitoring work served medical and industrial settings. We developed custom measurement systems for air cleaners, filters and air purifiers to assess their operation. Hospital cleanroom applications included differential-pressure and airflow measurements to support ventilation checks.
Industrial work included particulate monitoring in production environments. Across these applications, the aim was the same: measure physical conditions and make the information useful for the task.
A cigarette-smoke monitoring system marked the move into hospitality. It addressed a specific operational need: identify indications of indoor smoking so a property team could review the situation.
That work grew into monitoring for noise, smoke, occupancy, temperature and humidity. The property became the shared operational context for these different measurements.
Monitoring remains a core part of our work. Guest communication, configurable workflows and automation for compatible air-conditioning systems now extend the scope.
These are distinct responsibilities. Working together, they connect information from a property with guest contact, a team task or a configured action. The available steps depend on the product and the integrations in place.

Research & development
Developing sensing, electronics and software together.
M · LAB is the research and development part of MasterMind · Tech. Its work includes refining existing systems and exploring new applications. Hardware and software are considered together: from the signal a sensor captures to the information or action it needs to support.
Industrial development also led to our collaboration with Uraldi on humidity-controlled anti-fog mirrors. Alberto Fuentes is named as co-inventor on the resulting Spanish patent, granted in 2025. ES 3015808 B2.
Development principles
Our monitoring works without cameras or conversation recording. It provides information about property conditions, not the identity of individual guests. An occupancy estimate remains an estimate.
Configured workflows can support contact and follow-through. A personal decision, an incident review or a visit to the property remains the responsibility of the team in charge.
A measurement needs to be useful in everyday work. We consider not just the signal, but its context, the information needed and the next step for a guest or team.
The founder
Alberto Fuentes founded MasterMind · Tech in 2019. The starting point was the connection between research and practical application, first in air quality and industrial monitoring.
Moving into hospitality gave that development a specific operational context. That connection still matters: technology should make information useful and support people in their work, not replace their responsibility.
MasterMind · Tech today
We develop a hospitality monitoring ecosystem that connects physical measurements, guest communication and operational workflows. It supports property teams and connected systems rather than replacing a PMS.
Information about noise, smoke, occupancy and room conditions gives a team a basis for reviewing a situation.
Explore StayControlConfigured workflows can contact guests and teams. The information and actions available also depend on connected systems.
Explore StayAssistCompatible air-conditioning systems follow their own presence and configuration logic. Monitoring and communication remain separate responsibilities.
Explore StayEcoWhat information is missing in your daily work? Where do you need guest contact or a clearer process? Tell us about your operation so we can discuss the right technical approach.