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The Alarm-ID™ is a tank overfill and underfill protection system. This PST patented technology provides an alarm point when the identified liquid passes the sensor level either up or down. ​A series of Alarm-ID™ Units can be installed at key levels on the outside of tanks. The tank contents and even vacancy can be detected and alerts are activated in real-time 24/7.


  • Oil and Gas
  • Chemicals and Petrochemicals
  • Water / Wastewater
  • Power Stations
  • Food and Beverage
  • Agriculture

Product: EC1000A

Principle of Operation

All Liquids have a Unique Acoustic Fingerprint. The same acoustic technology allows for the detection of fluid levels in large tanks (containers). Overfill, a global problem, causes billions of dollars in loss annually and carries with it an immense impact on local environment is something relatively simple and effectively measured without intrusive, permanent or expensive methods. Exterior mounted sensors strategically placed at High and Low intervals provide volume readings in addition to content verification. 

  • Non-intrusive design, installed ont he outside of the tank
  • Quick installation (typically less than 30 minutes)
  • Wireless communications available per the new API 2350 specification
  • Bluetooth, WiFi and LoRa communication options
  • Compliant with New API 2350 specification for independent alarm overflow protection
  • Instrisically safe design
  • Separate power and communications from the primary level sensing system
  • Tank or Vessel
  • Channel or Flume
  • Shaft
  • Basin
  • Stilling Well
  • Sewage Plant
  • Other
13.25” x 6.5” x 4.7” (L x W x D) (33.655 cm X 16.51 cm X 11.938 cm), 6.8lbs (2.98kg)

Housing Style: Integral Sensor and Electronics or Sensor & Electronics Separate Compartments with 6’ Cable and 2” Pipe Mount Bracket
Mounting Surface: Flat and/or curved
Fastening Method: Epoxy, Bolt, Weld, Magnet
Power: Internal Battery, Battery with Solar Backup, Hardwired DC Power 5V, Power Over Ethernet (PoE)
Communications: WiFi, Cellular, Satellite, Hardwired, Redundant Cellular, Bluetooth LE, LoRa

Technology Overview Video
Live Demo Video

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