The Sentinel is a Cellular Tank or Sump Level Monitoring system that delivers reliable daily measurements that are both scheduled and event driven. Remote monitoring with the Sentinel is exceptionally flexible, eliminating the hassles of network infrastructures and Internet service. Instead, the Sentinel connects via a wireless signal to local cellular networks and transmits Alarms, Inventory, Battery Status and GSM Signal Strength, all of which are available through the Sentinel Cloud Based Website. The Sentinel online provides you with important data readily at your fingertips on your Computer, Tablet or Smart phone.


  • Battery Operated – No Programming – One Button Only
  • Remote Monitoring through Cellular Networks
  • Wireless Communication  GSM or Digital Wireless Radio
  • Frequency Bands  GSM 850 / 1900 MHz WLAN
  • E-mail Reporting – Alarms, Text E-mail
  • 24/7 access to data through Cloud Based Sentinel 247TM Online
  • Battery powered up to 5 years (3 calls/day)
  • Low Monthly Cost
  • Powerful – Long Range Antenna    (Perfect For Remote Locations)
  • Access Data Via PC, Laptop, Smartphone, Tablet
  • Secure Cloud Data (password protected)
  • No Hidden Costs
  • Standard Batteries
  • Can be Mounted Directly to Top of Tank – 2″ NPT
  • Eliminate Costly Emergency Fills or Pump-Outs