3-in-1 Commercial & Recreational Shellfish Measuring Gauge – 70mm, 90mm & 150mm Tool

Fast, Accurate Field Compliance Checks for UK Coastal Waters & Commercial Decks

Checking Minimum Conservation Reference Sizes (MCRS) quickly on a moving deck or wet shore rocks requires a rigid, reliable tool. Standard flat plastic gauges flex under pressure, while metal callipers rust and add unnecessary weight to tackle bags.

Designed and manufactured in the UK by an engineer with over 30 years of precision CAD and tooling experience, this 3-in-1 commercial and recreational shellfish gauge integrates three vital fishery measuring callipers into a single compact, rigid frame. Engineered with precise openings for 70mm, 90mm, and 150mm species limits, it delivers fast compliance checks right at the water's edge.

Key Marine Engineering Features & Field Benefits

• Rigid Triangular Truss Architecture: Engineered with a structural truss framework that eliminates flex across measuring faces while maintaining an ultra-lightweight, ergonomic grip.

• Heavy-Duty 4mm Solid Profile: Extra-thick 4mm construction provides high dimensional stability and impact strength, ensuring accurate measurements without flexing during rapid deck sorting.

• Multi-Species MCRS Callipers: Features three targeted measuring callipers on a single tool:

  • 70mm Notch: Velvet Swimming Crab (Necora puber)

  • 90mm Notch: European / Common Lobster (Homarus gammarus)

  • 150mm Notch: Edible / Brown Crab (Cancer pagurus)

• 100% Weatherproof Marine PETG: Precision 3D-printed using high-density, marine-grade PETG polymer. It will not absorb saltwater, degrade under direct UV light, or snap when dropped on wet rocks or steel decks.

• Inlaid High-Contrast Text: Dual-color molded lettering and size markings provide instant, high-visibility identification in low light, sea spray, or dark sorting bays.

Technical Specifications & Marine Fitment

• Gauge Calliper Dimensions: 70mm, 90mm, and 150mm Precision Notches

• Material: Outdoor Marine-Grade PETG Polymer

• Thickness: Heavy-Duty 4.0 mm Profile

• Design Type: Rigid Triangular Structural Truss Frame

• Target Species: Velvet Swimming Crab, European Lobster, and Edible Brown Crab

• Manufacturing Origin: Designed & Made in the UK

Package Contents

• 1x 3-in-1 (70mm / 90mm / 150mm) Commercial & Recreational Shellfish Gauge

Custom Sizes & Regional Modifications

• Custom Sizing & IFCA Regulations: Need specific calliper dimensions tailored to your local Inshore Fisheries and Conservation Authority (IFCA) bylaws or regional fishing limits? Contact us prior to checkout and we can modify the master CAD model for your custom print.

• Custom Colorways: Standard supply features high-visibility marine markings. Custom color combinations are available upon request.