• The gauge head is split into two separate compartments: the sealed side and the open side.
  • The sealed side is exposed to the tank; the open side exposed to atmosphere.
  • Sealed side features integral sloped channel, allowing condensation to drain freely back into the tank.
  • Compartments are only mechanically connected by the bearing-supported axle, and sealed by the unique Dual Dry Seal.

Dual Dry Seal

  • Dual dynamic FKM (Viton) seals the compartment from each other and prevents emission from the tank escaping from the gauge head.
  • Dry-Seal technology requires no addition of grease or other sealing agents for long-term reliable operation.

Compact, Indexed Cable Reels

  • Cable is wound on two reels, one in each compartment.
  • Compact Cable Reels reduce gauge head size, allow for higher pressure operation.
  • Reels are connected mechanically via a keyed common axel.
  • Reels provide accurate cable indexing with none of the slip associated with pulley systems.
  • Indexed reels allow the use of the bolt-on Goshawk Level Transmitter.


Measuring Principle Mechanical (Float)
Maximum Range 6 m [20 ft]
Local Display Tank Mounted Gauge Board & Indicator
Process Connection 1-1/2 MNPT
Process Temperature -40 °C to 60°C (w/ LLDPE Float)
Ambient Temperature -40°C to 70°C
Operating Pressure 1 bar [14.5 psi]
Maximum Range (w/ Goshawk I transmitter) 3.4 m [11 ft]
Maximum Range (w/ Goshawk II transmitter) 5.5 m [18 ft]
Maximum Range (w/ Goshawk III transmitter) 6.0 m [20 ft]
Power Supply (Goshawk transmitter) 13 - 24 VDC
Output (Goshawk transmitter) 4 - 20 mA
HazLoc (Goshawk transmitter) CSA Cl. I Div. 1 Gr. C&D

Related Documents


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Installation Instructions

Download Instructions

Ordering Information

Complete Roadside Hawk Level Indication System

  1. Specify “Roadside Hawk Level Indication System”
  2. Specify Tank Height, and Volume
  3. Specify desired gauge board graduations (volumetric [m3] is standard)
  4. Specify any options or accessories required.

Individual Roadside Hawk Gauge Head

  1. Specify “Roadside Hawk Gauge Head”

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