What is the Portalevel® Standard?

The Portalevel® Standard is a popular ultrasonic liquid indicator unit for core land based fire protection applications worldwide.

By 1987 Mr E C Hunter had began designing the world’s first dedicated marine portable liquid level indicator, able to monitor multi-banked rows of cylinders aboard commercial vessels

Whilst the original monitoring device was complex to use, its accuracy was unparalleled, able to read cylinders to within 1/8th of an inch or +/- 1.5 mm.

The ultrasonic liquid level indicator, is produced for land based fire protection applications.

Package Contents of Portalevel® Standard 7

The pinned package of 7th generation of Portalevel® Standard contains following components:

  • 1 Potalevel Standard unit
  • Ultrasonic Gel, 1 Wet Sensor
  • Calibration Certificate
  • 1 Hard Wearing Carrying Case
  • Operating Instructions


+/-1.5mm or 1/8 inch

Verifiable Agents

FM 200™, CO2, H2O, NOVEC™ 1230, Halons such as FE-13™, HFC-225 & 2271, FE-36™, FE-25™, 1301 and 1211 are some of the verifiable agents.


Coltraco has numerous certifications for the following product such as CE, Classification Society Approved- RINA and ISO 19011 Registered.

Operating Temperature

The operating temperature for the following device is -20°C to +70°C or 68°F to 158°F) and Relative Humidity is -5 % - 95 %.

Sensor 2

TX / RX Dry Sensor come 14 mm in diameter head and contains magnetized sensor applicator and is connected by BNC connectors to 1 m length co ax – cable.


Width: 95 mm (3.74 inches)
Height: 155 mm (6.10 inches)
Weight: 500 grams (17.63 ounces)
Depth: 45 mm (1.77 inches)

Power Supply

It comes with the power supply of 4 x AA 1.5 V batteries, which can function for 10 hours.


The display showing numeric digital comes as LCD with LED Bar Graph


Coltraco offers 3 years warranty for the main unit and 1 year for the sensor. Moreover, there can be exceptions available and customer support is always available for the users.


This liquid level indicator comes with the classification of IP Rating 65 and NATO Stock Number: 6680-99-275-5292

For more information, leave your question at Coltraco Online Support.

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