Industrial IoT Applications - Remote Temperature Sensor Monitoring

Introduction: Industrial IoT Applications - Remote Temperature Sensor Monitoring

About: I love remotely monitoring Industrial IoT / IIoT sensors. My favorite things is water monitoring systems, water levels / well telemetry, and flood warning systems. Questions? Please don't hesitate to get in...

**Update: The article below is from our legacy Android app. Valarm is Industrial IoT. We'll help you, your teams, and your business with Industrial IoT applications using Valarm Tools Cloud.

We recommend using GSM, WiFi, or ethernet connector devices / sensors hubs with any sensors since they're much more reliable than Androids for Industrial IoT applications like:

You can use Valarm Industrial IoT, telemetry and remote sensor monitoring solutions with any of the following connector devices:

Valarm Industrial IoT sensor data is GPS-tagged, time-stamped, and sent to Valarm Tools Cloud / via any internet connectivity like WiFi, ethernet, or cell network. You can use our e-mail alerts to get warnings and alerts when temperature, humidity, water levels, air quality, or any other sensor factor go above, below, inside, or outside your custom desired range!

With Valarm Tools Cloud you’ll find services for mapping, graphing, and APIs like JSON to help you with your real-time, geo-enabled sensor monitoring and Industrial IoT applications.

Valarm compatible sensors and Industrial IoT hardware are available at

Have a look at Valarm's Industrial IoT Customer Stories page for more on how these remote sensor monitoring and telemetry solutions are deployed in various industries.

Learn how all of this works together with our Web Dashboards for Remote Monitoring, Telemetry, Sensors & Industrial IoT.

Please don’t hesitate to contact us if your business needs help with deploying an Industrial IoT application or have any questions!


This video shows you how easy it is for you to do remote temperature monitoring with the Valarm app . Temperature and other mobile environmental sensors compatible with Valarm are available at

Transcript / Voiceover:

The Valarm app runs on Android devices and is compatible with a variety of sensors (via USB OTG & Bluetooth) and integrates with the website. We recommend using a dedicated device you can leave in the field for your scenario. This is a USB temperature sensor made by Yoctopuce. The plastic sensor enclosure has vents as well as holes for easy mounting your sensor on various surfaces. We also use double stick tape or adhesive-backed velcro since the sensor is really light.

For you to do remote temperature monitoring you first get the Valarm Pro app from the Google Play store. Once you've installed the Valarm Pro app plug in your sensor(s) and launch Valarm. I'm using a Y cable here that allows you to charge a phone at the same time as talking to USB (OTG) devices like sensors. You can get a Charging USB Host + OTG Y Cable (akaOTG+Charge) at

Now go to the All Settings screen and click Yoctopuce then Yocto-Meteo and Light. Turn on Yoctopuce sensors at the top if you haven't already. Use the Scan All button to see what the current environment is like. Use the sliders to set the maximum and minimum temperature values. If the temperature goes above the maximum or below the minimum you will trigger an alert, which you can monitor and view on Valarm Tools web maps and receive the alert in a text message.

You can go back to the settings screen and turn on the interval timer to trigger alerts at your desired time intervals, for example every 15 minutes.

To see your sensor data uploaded to the web watch Valarm's video on web integration and linking your device to

Now you can set up SMS or text message alerts by going to SMS/Remote Control settings. Turn on SMS alerts at the top of the screen. If you do Custom SMS alerts you can choose which Valarm sensor triggers will send you text messages. This is useful if you want to have the interval timer record your environment's temperature every 15 minutes and upload your sensor data to the web but at the same time you only want to receive a text message when the temperature goes above 100 degrees. You do that by only checking the Ambient Temp checkboxes in the custom list and leaving the interval timer box unchecked.

Back on the main SMS settings page you can set an SMS throttle which allows you to set the maximum rate at which the device will send you messages. Click any of the question mark buttons throughout the app to learn more about that feature. Enter up to 3 phone numbers to receive Valarm alerts.

At the bottom of this screen you'll also see the remote control settings where you can set a password for remotely controlling your Valarm device by text message. For example you can send your device a text message to arm or disarm at any time. See for more about remote control commands.

Now you're good to go so go back to the home screen and arm Valarm.

Once Valarm is armed your device is monitoring the temperature sensor. If the temperature goes above your custom maximum or below your minimum then a text message will be sent with the temperature and current location of the Valarm-equipped device. Here I've breathed my hot air onto the temperature sensor and triggered a max temperature alert on the dedicated Valarm device. I receive a text message alert on my personal phone that tells me the temperature sensor reading has gone above 75 degrees fahrenheit and the location where this happened. You can get more info about this at and if you have any questions or comments email us at .

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