The TROLL^® Shield antifouling system extends instrument deployments in coastal environments and at high-fouling sites. Within minutes, you can attach the TROLL Shield system to your instrument and deploy.

Combats Biofouling

The TROLL Shield system combats biofouling of Aqua TROLL^®, TROLL^® 9500, and Level TROLL^® instruments. Reduced sensor fouling extends instrument deployments by up to 6 weeks and improves instrument performance.

TROLL Shield components are made of specially formulated copper alloy that increases instrument resistance to micro- and macro-fouling organisms.

Protects TROLL Instruments

• Aqua TROLL 200 – Use the TROLL Shield guard and nose cone.
• Aqua TROLL 100 – Use the TROLL Shield guard.
• Level TROLL 500 and 700 – Use the TROLL Shield nose cone.
• TROLL 9500 – Use the TROLL Shield guard for the sub-4" instrument.

After a 6-week deployment, clean the instrument, guard, and/or nose cone. For optimal performance, replace the guard every six months and the nose cone annually.