• 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.

Large Diameter, Indexed Cable Reels

  • Cable is wound on two reels, one in each compartment.
  • Large Diameter Reels provide require minimal actuation forces.
  • 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 20 m [66 ft]
Local Display Tank Mounted Gauge Board & Indicator
Process Connection 2 FNPT
Operating Temperature -40 °C to 60°C (w/ LLDPE Float)
Operating Pressure 0.15 bar [2 psi]
Maximum Range (w/ Optional Goshawk I transmitter) 7.3 m [24 ft]
Maximum Range (w/ Optional Goshawk II transmitter) 11.9 m [39 ft]
Maximum Range (w/ Optional Goshawk III transmitter) 20 m [66 ft]
Power Supply 13 - 24 VDC
Output 4 - 20 mA
HazLoc CSA Cl. I Div. 1 Gr. C&D

Related Documents


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Installation Instructions

Installation Instructions

Ordering Information

Complete Redtail Hawk Level Indication System

  1. Specify “Redtail 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 Redtail Hawk Gauge Head

  1. Specify “Redtail Hawk Gauge Head”

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