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Heron H.Oil Interface Meter
Heron Instruments, Inc.

Heron H.Oil Interface Meter

Regular price $940.00 Unit price per
Shipping calculated at checkout.

About Heron H.Oil Interface Meter

The Heron H.OIL oil, water interface meter is used to measure the interface level between two liquids in the same tank, vessel, well or aquifer. The dissimilar density of two liquids means the lower density, non-conductive product (LNAPL) will float on top of the higher density, conductive liquid (water). Denser products will tend to sink (DNAPL), creating a layer under the water. The premium padded carry case comes included to protect your precision instrument from the elements.

The hydrocarbon resistant Kynar jacketed, high tensile steel core tape is able to withstand hydrocarbons, solvents and other harsh contaminants. The CSA intrinsically safe certification makes the H.OIL ideal for use in hazardous environments by Oil & Gas, Chemical and Petrochemical Industries.

Features & Advantages of Heron H.Oil Interface Meter

  • Certified  Intrinsically safe to CSA and ANSI/UL standards, class 9098-1 or 9098-81 (USA) for hazardous locations and Class I groups A,B,C and D
  • Detects LNAPL and DNAPL
  • Ability to measure product layer as thin as 1mm (1/200ft)
  • Grounding Lead
  • Electronic Module (IP65) – Automatic shut off after 10 minutes, removable for easy cleaning and servicing. Circuits and components are potted to protect from moisture and dust intrusion
  • Probe (IP68) – fully pressure/depth rated*, 19mm (0.74”) field replaceable
  • Steel Tape – high tensile steel, jacketed with Kynar, high break strength, stretch resistant and lifelong legibility – markings in metric (mm) or engineering scale (1/100’)
  • Steel Tape Certified/Compliant to – ASME B89.1.7-2009 & MIL-STD-45662A Certified, FED GGG-T-106F & EEC Class II Compliant
  • Padded Carry Case – to protect your precision oil water interface meter from the elements
  • Hanger – built in, to support the meter at the well head, allows for hands free deployment
  • Tape Guide - built in, to protect the tape from sharp edges on the well casing
  • Vinyl Holding Grip – molded to the frame, ergonomic easy grip
  • Winding Handle – custom made for easy rewinding with gloved hands

    Heron H.Oil Interface Meter Specifications

    Standard Reel 50ft (15m) to 500ft (150m)

    Height: 14.2" (36cm)

    Depth: 8.3" (21cm)

    Width: 11.4" (29cm)

    Weight (Reel Assembly Only): 5.1lb (2.3kg)

    Plate Size: 10.5" (26.67cm)

    Plate Material: Nylon

    Brake: Ergonomic Dial

    Hanger: Included On Frame Leg

    Tape Guide: Included On Frame Leg

    Test Points: On Back Of Frame



    Tape: High Tensile Steel

    Jacketing: Kynar

    Conductors: 7 Strand (4 SS & 3 Copper)

    Markings: Engineering Scale or Metric (Under Jacketing)

    Width: 3/8" (0.952CM)

    Dog Bone Profile: Yes

    Break Strength: 280lb (127kg)


    Weight: 0.278lb (126g)

    Length: 7.9" (200mm)

    Diameter: 0.74" (19mm)

    Removable: Yes

    Depth Rating: IP68

    Break Strain: 150lb (68kg)

    Wetted Materials: SS, Viton, Delrin, ABS & Grilamid

    Electronic Panel

    Operating Mode: Static & Product Interface

    Detects: LNAPL & DNAPL

    Power Source: 9V Alkaline Battery

    Audio/Visual Indication: Ultra Bright LED & 80 DB Buzzer

    Rating: IP65

    Removable: Yes

    Maximum Temperature: 80° C


    Padded Carrying Case

    Grounding Lead



    Intrinsically Safety to CSA and ANSI/UL Standards


    5 Years, 1 year on Probe