Holiday homes
Keep an eye on temperature, humidity and power between visits.
The Smart System monitors temperature, humidity and power. Smart Guardian sends alerts via SMS. An optional web service provides an overview of your properties, access to readings and alert history, and email alerts.
Over 300 devices sold



APPLICATIONS
The Smart System can be used to monitor one or multiple properties.
Keep an eye on temperature, humidity and power between visits.
Monitor conditions in rental properties while they are unoccupied.
Monitor temperature, humidity and power in warehouses and storage rooms.
View readings and alerts from multiple properties in one place.
HOW IT WORKS
Insert your SIM card into Smart Guardian.
Mount the Smart Guardian on the wall, connect it to power, and set the temperature and humidity alert limits using SMS commands.
Smart Guardian sends SMS alerts without requiring a web service subscription. You can use your own SIM card or get one from Triotech with an affordable mobile data plan. The optional web service provides access to readings and alert history, as well as email alerts. The web service is billed monthly or annually.
SMS delivery requires an active SIM card and mobile coverage on site.
PRODUCTS
Start with Smart Guardian and add Smart Scout or Smart Power Guard to suit your property. An online overview is available with the optional service subscription.

Smart Guardian
Smart Guardian measures temperature and humidity and monitors its mains power supply. The device uses your SIM card and is configured by SMS commands. Alerts are sent by SMS, without requiring on-site Wi-Fi.

Smart Guardian
Summer house · Temperature below threshold. Reading: 3 °C · Lower limit: 5 °C.
Illustration only. This is not a message captured from a device.

Smart Scout
Smart Scout measures temperature and humidity in another space, such as a garage, basement or storage room. It connects wirelessly to Smart Guardian.
Readings are sent to Smart Guardian, which sends SMS alerts when a reading crosses a configured alert threshold.

Smart Power Guard
Smart Power Guard plugs into the socket you want to monitor. It can be on a different electrical circuit from Smart Guardian or protected by a different residual-current device (RCD).
Smart Guardian monitors the wireless signal from Smart Power Guard and sends an alert if it disappears. This can be caused by a power outage or a wireless connection problem.
| Product | What it does |
|---|---|
| Smart Guardian | Measures temperature and humidity, monitors its own power supply and sends SMS alerts. |
| Smart Scout | Measures temperature and humidity in another space and sends readings to Smart Guardian. |
| Smart Power Guard | Monitors power at another socket using a wireless signal to Smart Guardian. |
Smart Messenger is a communications module connected to Smart Guardian, allowing it to connect to up to 20 Smart Scout units. We can help select compatible equipment for your setup.
SUBSCRIPTION AND SERVICES
Smart Guardian sends SMS alerts using your SIM card without a Triotech service subscription. An optional web service provides access to readings and alert history, as well as email alerts. The service is billed monthly or annually.
STANDALONE SETUP
Insert the SIM card into Smart Guardian and configure the device using SMS commands. SMS alerts are sent directly to your phone.
You provide the SIM card and cover your mobile service costs.
MONTHLY OR YEARLY SERVICE FEE
A service subscription lets you view readings and alerts from one or more devices in Triotech’s web portal.
With a service subscription, Smart Guardian units send SMS alerts to the SMS server. When multiple units report the same incident, the server combines their alerts into a single SMS message to you.
Smart Guardian sends a daily SMS check-in to the SMS server to confirm that it is active. If the check-in does not arrive, you receive an SMS or email alert so you can check the device and its mobile connection. This monitoring is included in the service subscription.

FEATURES
The battery supplies backup power during an outage. SMS delivery requires mobile coverage.
You provide a SIM card for alerts and status requests. No on-site Wi-Fi is required.
Set temperature and humidity thresholds by SMS. With a service subscription, supported settings are also available in the portal.
Smart Guardian measures temperature and humidity at its location. Smart Scout adds readings from another space.
ABOUT TRIOTECH
Over 300 devices sold
Triotech is run by Arinbjörn Kristinsson, Eiríkur Sigurðsson and Guðmundur Ellertsson.
We develop, manufacture, sell and support our own electronic devices.
We also undertake custom development projects involving electronic devices and embedded systems.
QUESTIONS AND ANSWERS
Not for basic use. Smart Guardian uses your SIM card and sends SMS alerts directly to your phone. You can configure the device and request its status using SMS commands. You pay for your own mobile service. Triotech’s web service is an optional addition with a monthly or annual fee.
With a service subscription, Smart Guardian sends a daily SMS check-in to the SMS server. If it does not arrive, you receive an SMS or email alert so you can check the device and its mobile connection.
SMS uses the GSM/4G mobile network. It requires an active SIM card and coverage at the installation site, but not the building’s Wi-Fi.
The built-in battery takes over and the device sends an SMS alert. Delivery still requires mobile coverage at the property.
First, insert the SIM card into Smart Guardian. Then mount the device on the wall, plug in the power supply and configure the alert thresholds using SMS commands.
Yes. Each property can have its own Smart Guardian. With a service subscription, readings and alerts from the devices are available in the same portal.
Complete the quote form at the bottom of the page. We’ll contact you and help you choose equipment and services to suit your needs.
REQUEST A QUOTE
Request a quote for the Smart System for one or more properties. We’ll help you choose equipment and services to suit your needs.