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Portalevel® Intrinsically Safe

8th Generation Portable Ultrasonic Liquid Level IndicatorP/N: 2290334-COISEx-stockSame-Day Dispatch*Request Quote*Order must be placed before 1pm UK office hours


Records PORTALEVEL® results by agent weight


Records PORTALEVEL® results by agent weight



Some customers operate in specific environment where the presence of potentially dangerous gases can be experienced. Examples of this can include Oil & Gas Drilling, Petrochemical Refining & Processing, Fuel Storage, Chemical Manufacturing and many similar environments. To cater for such customers who need to inspect fire systems in such environments we have developed the ATEX Approved Portalevel® MAX specified to Zone 1 environments.

Three years warranty
Lifetime support
Calibration & trainingcertificates available*
Fast operation.Service a cylinder inunder a minute
Ultrasonic technology No radiation. Non-intrusive.
Suitable for explosive atmospheres
Accurate to 1.5mm offthe true liquid level.
Complies with NFPA regualtions. see Fire Code 1.4.1

Technical Specifications

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  • Height:200 mm (7.87 inches)
  • Width:82 mm (3.22 inches)
  • Depth:30 mm (1.18 inches)
  • Weight:350 grams (12.35 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
  • 14 mm diameter head
  • Contained within a magnetized sensor applicator;
  • Connected by BNC connectors to 1 m length co-ax cable.

Power Supply

4 x AA 1.5V Batteries (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)Relative Humidity-5 % - 95 %


  • CE
  • ISO 19011 Registered
  • Zone 1 ATEX Certified
  • UL Approved


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


Main Unit: 3 Years WarrantySensor: 1 Year WarrantyLifetime Customer Support

Package Contents

  • 1 Portalevel® Intrinsically safe unit
  • 1 Wet Sensor
  • Ultrasonic Gel
  • 1 Hard Wearing Carrying Case
  • Calibration certificate
  1. If a specific agent is not listed then please enquire with our technical support team
  2. Please note for rugged applications on old or rough cylinders a dry sensor can be exchanged in the package.
  3. Download Specifications PDF version here-

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Ultrasonic Liquid Level Indicator

Ultrasonic Liquid Level Indicator

Ultrasonic Liquid Level Indicator

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