3-in-1 Commercial & Recreational Shellfish Measuring Gauges

Precision-engineered multi-gauges designed for fast, accurate field checking of Minimum Conservation Reference Sizes (MCRS). Engineered for durability on deck, these lightweight, compact tools cover major UK crab, lobster, and whelk regulations.

Select your preferred gauge option or choose the Complete 2-Gauge Pack from the drop-down menu above to cover all your measuring needs.

Gauge Options & Target Species

Option A: Standard Crustacean Gauge (70mm / 90mm / 150mm)

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

• 90mm Notch: European Lobster (Homarus gammarus)

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

Option B: Regional & Whelk Gauge (87mm / 105mm / 110mm)

• 87mm Notch: European Lobster (Homarus gammarus) – Standard regional MCRS size

• 105mm Notch: Crawfish / Spiny Lobster (Palinurus elephas)

• 110mm Notch: Large Brown Crab / Whelk Width Gauge – Ideal for specific regional fishery bylaws

Option C: Complete 2-Gauge Pack

• Includes 1x Standard Gauge + 1x Regional & Whelk Gauge for complete versatility across all UK shellfish fisheries.

Key Features

• Rigid Triangular Truss Design: Engineered for zero flex across measuring faces while remaining lightweight and compact in the hand.

• 4mm Solid Construction: Thicker profile ensures high dimensional stability without bending during quick deck measurements.

• 100% Saltwater & Chemical Resistant: 3D printed from high-grade PETG plastic, making it completely impervious to sea spray, UV exposure, and harsh marine environments.

• High-Visibility Text: Inlaid dual-colour lettering provides clear, instant size identification in low light or wet conditions.

Specifications