Portalevel® Intrinsically Safe

The Portalevel® IS is the world’s only Zone 1 Approved ATEX Liquid Level Indicator and focuses on inspecting fire suppression cylinders installed in highly sensitive environments.


9th Generation
Intrinsically Safe Portable Ultrasonic Liquid Level Indicator
Ex-stock | Same-Day Dispatch*

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Approved to Zone 1, II 2 G Ex ib IIA T4 Gb standard, the Portalevel® IS is capable of working even in the most sensitive of environments. Its primary function is to detect the liquid level in fire suppression cylinders including CO2, FM200™, NOVEC 1230® and all other fire suppression agents, where the systems are installed in ATEX Zones. Critically, this removes the need for inspecting fire systems using a Hot Work Permit and offers significant time, cost and safety benefits when compared to weighing.

Due to the low power requirements of ATEX Approval, the unit has been evolved to have 3 different Calibration bands and 4 different power levels. The Calibration bands allow the unit to set itself up on a wide variety of different cylinder types with minimal input from the user. This is critical in maintaining high levels of accuracy, ease of use and low risk of user error during testing. The different power levels then allow for testing much larger or corroded tanks.

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  • Height:215 mm (8.46 inches)
  • Width:82 mm (3.22 inches)
  • Depth:30 mm (1.18 inches)
  • Weight:480 grams (16.93 ounces)


+/-1.5mm (1/8 inch)

Verifiable Agents

CO2, H20, FM-200™, NOVEC™1230, old Halons such as 1301 and 1211, FE-13™, FE-25™, FE-36™, HFC-225 & 2271


TX/RX Dry Sensor
  • 34 mm diameter head.
  • Contained within a magnetised sensor applicator.
  • Connected by BNC connectors to 1m length co-ax cable.

Power Supply

4 x AA L91 Energizer Batteries (only type permitted to use with this device)


Membrane control operated, LCD back-lit Display measuring 55 x 28 mm

Operating Temperature

Ta = -20°C to +40°C (68°F to 104°F)Relative Humidity-5 % - 95 %


  • II 2 G Ex ib IIA T4 Gb
  • Coltraco is CE
  • UKAS ISO 9001 Registered & ISO 14001
  • Zone 1 ATEX Certified


  • IP Rating 65
  • NATO Stock Number: 6680-99-275-5292


Main Unit: 3 Years Warranty Sensor: 1 Year Warranty Lifetime Customer Support

Package Contents

  • 1 Main Unit
  • 1 Sensor (P/N 2290334-IS-CO10)
  • 1 Ultrasonic Gel Tube
  • 1 Robust Carrying Case
  • 1 Calibration Certificate
  • 1 Operating Instructions

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