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Smart Tune Turnscrew
Smart Tune Turnscrew

Turnbuckle body with integral sensor

Measures the actual forestay load

Extremely accurate

Easy to retro-fit

Data Relay Function:
direct to smart phone or computer

Waterproof to IP67 rating

Factory Calibrated


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Smart Tune is an innovative solution for accurate, live measurement of a forestay load.

Simple for crews to retro-fit at the dock, Smart Tune makes repeatable headsail shape control available for yachts of all sizes, at all levels.

With precision-designed, highly-accurate wireless technology, Smart Tune truly is a plug-in performance upgrade for your boat.

Smart Tune fittings are a simple, screw-in replacement for existing turnbuckles.

Wireless connectivity means no need for drilling holes to run cables from the sensor, and the receiver plugs directly into your existing instrument package.

Wireless Technology

Live forestay load data is sent wirelessly to your on-board instrumentation, or direct to your smartphone, for the ultimate in convenience.

Designed to survive the elements

Smartune Sensors are rated to IP67, meaning no dust ingress, and no water ingress when immersed between 15 centimetres and 1 metre depth.

The precision machined plastic bodies are designed and built to withstand the rigours of the foredeck.

High Accuracy Load Sensor

Precision engineered for accuracy, Smart Tune directly measures the actual forestay load – no more worries about alignment errors.

Factory Calibrated

Smart Tune fittings go through a rigorous calibration procedure before being shipped, saving you from time-consuming calibration and providing accuracy “out of the box”.

Smart Tune fittings are created with the latest FEA computer design tools and built with state-of-the-art 3D manufacturing processes.