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Cyclops Marine

ST03

Smarttune 7/16" Cape 31 stay load sensor

The CYCLOPS Smarttune 7/16" Cape 31 is a wireless rig tension sensor designed for real-time load measurement on standing rigging. It replaces the existing turnbuckle to provide accurate data (±1% of the calibrated 1900 kg load) via Bluetooth to the Smartfittings app or compatible displays, with a 16-month battery life.

Comes with a pair of Cape 31 limit sleeves.

Retail priceBenefit from the professional rate

1.366,10€

1.366,10€ ~~1.438,00€~~

Shipping calculated at checkout.

Prices shown excluding VAT for Türkiye. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Available to order

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Operating voltage	3 V
Max power consumption	Less than 0.001 W
Typical power consumption	Less than 0.001 W
Product width	60 mm
Product height	170 mm
Product depth	26 mm
Ingress protection	IP67
Bus compatibility	NMEA 2000,NMEA 0183,NKE,UDP,MQTT
Wired network	NMEA 2000,NMEA 0183,NKE,UDP,MQTT
Mounting type	Replacement of existing turnbuckle
Linearity	±1%
Sensor output type	Wireless (Bluetooth), Wired (NMEA 2000, NMEA 0183, NKE, UDP, MQTT via bridge)
Sensor connection type	Wireless (Bluetooth), Wired (via optional bridge)
Sensor type	Load cell
Sensor compatibility	Smartphones (iOS/Android), Vakaros Atlas 2 displays, Sailmon MAX, NMEA2000/0183/NKE/UDP/MQTT systems via bridge
Data output	Real-time load data
Update rate	1 Hz (up to 10 Hz configurable)
Operating temperature range	0-40 °C
Working Load Limit	1900 kg
Thread Size	7/16 inch
Measurement Accuracy	±1%
Wireless Protocol	Bluetooth
Battery life	11520
Product dimensions	60x170x26 mm
Material	316L stainless steel, brass, acetal
Battery type	2x AAA
Calibration Required	Yes
Compatible Vessel Types	Racing sailboats,Cruising sailboats,Multihulls,Superyachts,Dinghies,Sports boats,Racing yachts,Classic boats,Kitesurfing
Country Of Manufacture	United Kingdom
Data Logging Capability	Yes
Ease Of Installation	Easy
Housing material	Acetal
Power source	Batteries
Rigging Application	Shrouds,Pardons,Stays,Backstays
Specific Boat Class Compatibility	Cape 31

Detailed description

Designed to optimize performance and safety for racing and cruising sailboats, the CYCLOPS Smarttune 7/16" Cape 31 stay load sensor integrates wireless tension measurement technology into a standard rigging turnbuckle. It allows sailors to replace their existing turnbuckle to obtain real-time load data on standing rigging such as forestays, backstays, shrouds, and intermediates.

Accurate Measurement and Extended Connectivity

This sensor delivers ±1% accuracy of calibrated load, providing reliable data to fine-tune rigging settings. With a calibrated load of 1900 kg, the Smarttune 7/16" is suitable for a variety of applications. It connects wirelessly via Bluetooth to the Cyclops Smartfittings smartphone app (iOS/Android) and can be directly integrated with Vakaros Atlas 2 and Sailmon MAX displays. For full integration into the onboard system, an optional Cyclops gateway enables data transmission via NMEA 2000, NMEA 0183, NKE, UDP, and MQTT.

Autonomy and Durability

The Smarttune 7/16" is powered by two AAA batteries, providing approximately 16 months of autonomy. Its acetal housing is rated IP67, ensuring protection against temporary immersion and dust, and is designed for durability in marine environments. Load data can be recorded and analyzed post-sailing via the app or gateway, enabling continuous performance improvement.

Documentation

Type	Nom
	marine_brochure2024_pdf.pdf
	Copy of App Guide Issue 9 EN.pdf
	Copy of smarttune Guide Issue 11 EN.pdf
	Copy of App Guide Issue 9 FRA.pdf
	Copy of smarttune guide Issue 9 EN.pdf

Expert opinion

« Smarttune 7/16" Cape 31: Wireless rigging optimization »

The CYCLOPS Smarttune 7/16" Cape 31 is a strategic solution for sailors looking to precisely optimize their rigging settings. Designed to directly replace an existing turnbuckle, it transforms a passive rigging component into an intelligent sensor. Its ability to provide real-time tension data is crucial for achieving and replicating optimal sail performance, enabling fine adjustments to sail shape and mast balance.

Integration of this sensor is simplified by its standard format and wireless connectivity. Whether via the dedicated mobile app for instant analysis or deeper integration with onboard navigation systems through an NMEA bridge, the Smarttune offers flexible data display and recording. This dynamic data acquisition not only improves boat speed and control but also enhances safety by alerting to excessive loads and helping prevent rigging failures, especially in marginal conditions. It is an indispensable tool for crews aiming to maximize their racing potential and sail with deep insight into mast and sail loads.

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Smarttune 7/16" Cape 31 stay load sensor

1.366,10€

1.366,10€ ~~1.438,00€~~

Frequently Asked Questions

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What is the Smarttune 7/16" sensor and what is it used for?

The CYCLOPS Smarttune 7/16" is a wireless load cell riddin turnbuckle designed to replace a standard turnbuckle on sailboats. It allows real-time measurement of standing rigging tension, such as stays, backstays, shrouds, and forestays. This data is essential for optimizing rigging settings, improving boat performance, and enhancing safety by preventing overloads.

What is the measurement accuracy of the Smarttune 7/16" sensor?

The Smarttune 7/16" sensor provides a measurement accuracy of ±1% of the calibrated load. For this specific 7/16" model, the calibrated load is 1900 kg. This accuracy is maintained within a temperature range of 0 to 40°C.

What are the dimensions and weight of the Smarttune 7/16" sensor?

The Smarttune 7/16" transducer has dimensions of 60x170x26mm (width x height x depth) and weighs 390 grams.

How is the Smarttune 7/16" sensor powered, and what is its battery life?

The Smarttune 7/16" sensor is powered by two replaceable AAA batteries. It offers approximately 16 months of battery life. When the batteries need replacing, the sensor will display a charge of 0.00, even when powered on.

Is the Smarttune 7/16" installation complex?

Installing the Smarttune 7/16" is designed to be straightforward and easy to perform at the dock. It replaces your existing turnbuckle. The procedure involves loosening the rigging, measuring the length of the current turnbuckle, applying anti-corrosion paste to the threads, then screwing the Smarttune into place in place of the old turnbuckle while ensuring correct orientation.

How do I replace the batteries in my Smarttune 7/16" sensor?

To replace the batteries, do it in a dry location. Steps:

Unscrew the two Phillips-head screws on the side of the sensor to remove the plastic cover.Remove the old batteries and insert two new AAA batteries.Check that the O-ring is properly seated and lubricate it if necessary.Replace the cover and tighten the screws without over-tightening; stop when flush with the surface.The sensor will display 0.00 when the batteries need replacing.

Which devices and applications is the Smarttune 7/16" sensor compatible with?

The Smarttune 7/16" sensor wirelessly connects via Bluetooth to the Cyclops Smartfittings mobile app, available for iOS and Android smartphones. It is also compatible with Vakaros Atlas 2 and Sailmon MAX displays for direct data output.

Can the Smarttune 7/16" integrate with my existing onboard electronics system?

Yes, for full integration into your onboard system, an optional Cyclops gateway is available. This gateway enables charge data transmission via various protocols, including NMEA 2000, NMEA 0183, NKE, UDP, and MQTT, making the sensor compatible with most navigation display brands.