Frequently Asked Questions
If you have any other questions, please contact us.
What size sensor is right for my boat?
The easiest way to figure this out is to measure the male threaded stud that is screwed into your current turnscrew. The different sizes correspond to the thread sizes:
|Imperial Thread||Metric Thread|
We also provide a size guide for the more common classes.
Please note this is a guide only, and you should check your sizing before ordering.
|Sensor Size||Boat Type|
|1/2”||J/88, J/99, J/105, J/109, J/111, Sun Fast 3300|
|5/8”||J/121, J/122, Sun Fast 3600, First 40|
Can I install the sensor myself?
Absolutely. The whole process takes approximately an hour and requires a few tools, which you may already have onboard. Please contact us for instructions.
What is the Wireless connection and range between the sensor and the Gateway/app?
The sensor broadcasts the load data over Bluetooth Low Energy (BLE), with a theoretical range of no more than 100m unobstructed, but this is unlikely due to the plastic and metal components of the sensors. If there is any boat/mast/sails/people between the sensor and gateway or smartphone (if using the app), this will be reduced. In reality a range of 40m line of sight is possible.
You can program the gateway to listen for your specific sensor by connecting to the WiFi network printed on the top of the gateway. Please contact us for instructions.
We recommend that the gateway is installed below decks as close to the sensor as possible. For example, for a smarttune sensor installed on the forestay, the ideal location is on the forward face of forward bulkhead.
Will I ever need to pair the sensor and gateway/app? Can I add sensors to my existing gateway?
Yes, you will need to program the gateway or smartphone app to listen for the sensor (if this hasn’t been done already). The sensor is designed to broadcast like an FM radio, and the gateway/app will listen to the sensor(s) that have been added using the 12 character data key supplied with the sensor. Once programmed there is no active pairing required like a cellphone and wireless headphones.
Please contact us for instructions on how to add additional sensors to a gateway.
Will the sensor and gateway work with my marine electronics?
The gateway can output to any modern marine instruments that support the NMEA2000 standard and specifically PGN65293, such as B&G H5000 range and Sailmon. We are in the end stages of assuring compatibility with NKE instruments. Installation is plug and play into your chosen instrument system backbone. Please consult with your instrument supplier or marine electrician to ensure compatibility.
For older instruments, we are working on supporting the NMEA0183 standard. Unfortunately because this is an obsolete standard (from 1983!) with many revisions, we are unable to guarantee compatibility with all instruments, especially because systems of this age may be made up of components from multiple suppliers.
What batteries are used in the sensor/What is the battery life of the sensor?
2x AAA batteries, with a battery life of 5 months. The use of lithium AAA batteries will likely double the battery life (not supplied)
1x CR2032 coin cell battery, with a life of approximately 150 hours.
How do I turn the sensor on/off?
The sensor is on as soon as there are batteries installed. Due to the 6 month battery life, there is no need for a power button.
There is a smartpower button on one side.
|Press button:||Light flashes||Powered on for:|
|1 time||Once||30 seconds|
|2 times||Twice||20 minutes|
|3 times||3 times||2 hours|
|4 times||4 times||8 hours|
|5 times||5 times||Continuously|
If the sensor is on, press the button once to power it down after 30 seconds.
How do I replace the batteries?
It is highly recommended that the batteries are changed in a dry, enclosed location e.g. below decks where possible.
1. To change the batteries carefully remove each of the battery covers on the side of the sensor by unscrewing the 2 Phillips head screws with a small Phillips screwdriver.
2. Lift off the plastic battery cover and place down without disturbing the seal on the body. 3. Check the ‘O’ ring seal is seated properly and re-lubricate if dry.
FAILURE TO MAINTAIN THE SEAL WILL RESULT IN WATER INGRESS & PERMANENT DAMAGE NOT COVERED UNDER WARRANTY.
4. Replace the plastic battery cover and carefully locate the 2 screws, screw until the seal is compressed an even amount all round. Tighten until the battery cover and screws are flush. DO NOT OVER TIGHTEN THE SCREWS.
The battery cover can be removed with coin, ensure to reinstall the cover so that it is flush with the housing.
How do I load with strops?
smartlink is designed to be loaded in line with strops, for the most accurate load measurement. If smartlink is loaded in a bridle configuration, the displayed load will be inaccurate.
Are the sensor and gateway waterproof?
The sensors are IP67 rated, which means they are completely dust proof, and will not have any water ingress while submerged at 0.5m depth for 30 minutes.
The gateway housing and cable are IP54 rated, meaning they have limited protection against dust ingress, are protected against splash water from any direction, but not immersion – please do not submerge it! It is recommended that the gateway is installed below decks.
Where do I connect the Gateway?
The gateway and supplied NMEA2000 cable + T-Joiner will need to be added to the instrument backbone, which looks like this:
This can often be found behind the nav station, or around the mast base. If necessary, to position the gateway as close to the sensors as possible, it may be necessary to add a NMEA2000 extension cable (not supplied).
Does work with headsail furlers?
At this stage our smarttune sensors are unable to be used with structural furlers, because there is no turnscrew that can be easily replaced with our sensor. If you are unsure, speak to your rigger or please send us a photo of your forestay set up and we will be able to give you a more definitive answer.