Insightful Tank Level Monitoring™

Simple installation, meaningful alarms, data that provides insight to help you manage your business better. That's insightful tank level monitoring.

Whisker.io insightful tank level monitoring
Standalone tank level monitoring solution Sent.io™ tank level monitors

Standalone Applications

  • 1 or 2 tanks per location.
  • 5 min. installation.
  • IP67 Water Resistant.
  • -40 to +85° C operation.
  • Readings every 15 minutes to one/day*.
  • 4-10 year battery life (10yr at 1 reading/day).
  • Direct2Cloud MC-CATM1™ Cellular.
  • Very competitive pricing. Contact us today!
  • 1st yr. monitoring is free with purchase of hardware

Sent.io™ tank level monitors are perfect for applications where you have only 1 or 2 tanks at a location. They sample as fast as every 15 minutes and communicate directly to the cloud using our proprietary Cat M1-MC™ technology, which can communicate natively on AT&T, T-Mobile, or Verizon. This means you will always have accurate, frequent, and reliable tank level data.





Bulk tank level monitoring solution Whisker.Block tank level monitoring sensor

Bulk Storage Applications

  • 3+ tanks per location.
  • 5 min. installation.
  • IP67 Water Resistant
  • -40 to +85° C operation.
  • Readings every 5 minutes to one/day**.
  • 15+ year battery life (any sample rate).
  • LoRa 900Mhz Sensor to Gateway (>1 mile)**.
  • Gateway uses Direct2Cloud MC-CATM1™ Cellular.
  • Very competitive pricing. Contact us today!
  • 1st yr. monitoring is free with purchase of hardware

Whisker.Block® tank level monitors use our proprietary 900MHz LoRa communication technology to communicate at distances of more than 2 miles (outdoors LOS) and sample tank levels every 5 minutes while operating for more than 10 years from the internal AA batteries. They are perfect for applications like bulk tank storage where 3 or more tank levels need to be monitored. Whisker.Blocks forward tank levels to our Smart.Hub LT™ gateway which in turn forwards readings to our cloud platform using our proprietary Cat M1-MC technology.





Tank level monitoring information sheet

Information Sheet Download

For your convenience, we prepared an information sheet that includes part numbers to help you detecmine exactly what you need for your application. Contact us for information about pricing.


Tank level monitoring using mobile phone Tank level monitoring using laptop or mobile device

Award winning IoT platform

Our tank level sensors integrate flawlessly with the other products and technologies in the Whisker.io® IoT platform, allowing you to create a comprehensive remote asset monitoring and management system for your entire enterpise.

  • Chemical injection pump control and monitoring
  • Refrigetor and freezer monitoring - product and ambient temps
  • Compressed air pressure monitoring
  • Vibration monitoring
  • Environmental monitoring - pressure, temp, light, humidity, etc.
  • SCADA - remotely monitor and control any PLC (LivePLC™)
  • Septic system alarm and health monitoring

Manage and monitor your assets anytime, from anywhere in the world, using any PC, tablet or mobile phone. Our award winning Whisker.io® portal application is easy to learn, simple to use, and provides tools to analyze your data, setup automatic alerts and reporting, and control your assets. Use our drill down map interface or roll your own user interface using our NexusHMI and Dashboard options.

  • User configurable SmartAlerts, no more false alarms. Text and email
  • Simple to use map based drill down interface - get to any data with 2 clicks
  • NexusHMI - custom HMI (user interface) screens provide familiar interaction
  • Dashboards - analyze tons of data with user-defined dashboards.
  • Custom reporting available
  • Custom exporting available
  • Roles based permissions provide granular control over user access
Tank level monitoring made in the USA.

Proudly Built and Supported in the USA

The Sent.io™ Direct2Cloud IoT Gateway, Whisker.Block®, Smart.Hub™, and Whisker.io® cloud app are designed & built by our team of engineers and technicians in the heartland of the USA. We do not outsource any aspect of our technology platform and when you need support, you can talk directly to our engineering team for help. If you have an idea that could improve our products or application, let us know - most of the great features we have today started as suggestions brough to us by customers.