Portalevel® MAX

8th Generation
Portable Ultrasonic Liquid Level Indicator
P/N:2290334-COMX | NSN: 6680-99-275-5292
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The fastest, most powerful and easiest to use unit ever produced by Coltraco Ultrasonics. With UL Listing, it is ideal for testing large cylinders or high intensity applications.


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The Portalevel® MAX equipment is specially designed for users looking to identify the liquid level in large numbers of cylinders, containers with particularly large agent mass and those requiring UL Approval.

The 8th Generation technology testing procedure is short and simple, making the process of inspecting cylinder content incredibly fast. Every cylinder can be inspected in under 30 seconds, with the ’auto-cal’ feature automatically setting up the unit for each cylinder at the touch of a button. This significantly reduces user error, makes the testing process very simple and requires minimal user training.

The Portalevel MAX also has 4 different power modes (SPA). The SPA feature increases the sensitivity of detecting the returning signal and increases the strength of the output signal. This enables the unit to continue working on very large tanks up to around 800KG of agent or containers experiencing high levels of corrosion and pitting.

The equipment can detect a wide variety of liquids including CO2, FM200®, NOVEC 1230®, Halon and all other liquid agents. Accurate to +/-1.5mm the Portalevel MAX® also has a variety of approvals including UL, ABS and RINA Approvals and fully complies with NFPA standards for use. In a hard aluminum case, it is designed to sustain rough handling and high intensity usage to provide users a long-term investment. The unit has an expected lifespan of 10years with minimal consumables required and with the Coltraco Customer Guarantee, we always promise to buy back the unit for upgrade to newer models at any time customer requirements change.

1. Dry Sensor A standard sensor for all land based Portalevel units. The metal applicator is connected to the unit via 1 meter of ax cable and a BNC connector.

2. Portatherm An infrared thermometer comes as standard. Designed with portability in-mind, this device is intended for monitoring cylinders in warm climates.

3. Main Unit The main unit is protected a IP65 Enclosure and weighs just 500 grams. It has a LCD Numeric Display with LED Bar Graph and 4 touch button controls.

4. Ultrasonic Gel Ultrasonic Gel is a brilliant agent for increasing the surface contact of the Sensor. Coltraco sensors have also been designed to work with water .

5. Extension Rod (Optional) The Multi-Banked Extension rod comes as standard with the all Portalevel® MAX Marine models. It is designed for testing the rows of CO2 cylinders 3-4 deep


  • Height: 160 mm (6.29 inches)
  • Width: 82 mm (3.22 inches)
  • Depth: 30 mm (1.18 inches)
  • Weight: 300 grams (10.58 ounces)


+/-1.5mm (1/8 inch)

Verifiable Agents

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

Please speak to our Sales team for the full range.


TX/RX Dry Sensor

  • 14 mm diameter head
  • Contained within a magnetized sensor applicator;
  • Connected by BNC connectors to 1 m length co-ax cable.

Power Supply

1 x PP3 9V battery (battery life 10 hours)


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

Operating Temperature

-20°C to +70°C (68°F to 158°F)


  • Classification Society Approved- RINA
  • CE
  • ISO 9001 Registered
  • ABS Type Approved” & “ISO 14001 Registered Company


  • 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 Portalevel MAX unit
  • 1 Wet Sensor
  • 1 Portatherm
  • Ultrasonic Gel
  • 1 Hard Wearing Carrying Case
  • Calibration certificate

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