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AthLink

The control centre for your timing.

From €329, or in the kit with two Sauron photocells

AthLink V2 seen from above, with external antenna and glossy black acrylic front

Eight photocells. Two and a half kilometres. One phone.

AthLink receives Sauron photocell times over radio and sends them to your smartphone over Bluetooth. In real time, with no cables, even without internet.

Fits in one hand.

External antenna. Real range.

Ready for the field.

AthLink by the numbers.

2.5 kmLoRa radio range in open field*
8devices connected together
0.001 stiming resolution
14 hbattery life
10,000+passes stored on board
< 1 minfrom power-on to first run
How it works

From finish line to phone. In an instant.

SauronstartSauronfinishLoRa 433 MHzAthLinkreceives, stores, relaysBluetoothSession · 60 m–secondsLIVESauronstartSauronfinishLoRa 433 MHzAthLinkreceives, stores, relaysBluetoothSession · 60 m–secondsLIVE
  1. 01Sauron detects the pass.The beam breaks and the time is logged to the millisecond.
  2. 02AthLink receives it over radio.LoRa at 433 MHz, up to 2.5 km in open field.
  3. 03You read it on your phone.Bluetooth connection to AthLink: no router, no network.
Design

External antenna. Range without compromise.

Brass SMA connector and a dedicated 433 MHz antenna. The body — about 107 × 41 × 20 mm — fits in one hand and in any training bag. The front is glossy black acrylic.

Close-up of AthLink's brass SMA connector and antenna

Two buttons. Two lights. Nothing else to learn.

AthLink front view with numbered buttons and LEDs
  1. 1433 MHz SMA antenna. Removable, for maximum range.
  2. 2Stopwatch button. Manual finish or DNF for the run in progress.
  3. 3Power button. Turns AthLink on and off.
  4. 4Status LEDs. Device on top, network below.

The stopwatch button

Some functions are available directly on AthLink, without the phone.

Single press
Marks the run in progress as DNF.
Double press
Manual finish: ends the run in progress at the time of the press.
Long press
Opens pairing for new photocells, without going through the app.
Long press at power-on
Restores factory settings.

Two LEDs, two answers

Top LED · device
  • GreenBattery charged
  • YellowBattery below 20%
  • RedBattery below 5%
  • Blinking yellowFault
Bottom LED · network
  • GreenNetwork live, devices connected
  • YellowNetwork live, no devices
  • RedNetwork not ready yet

Glossy black acrylic front.

A shell designed to resist splashes.

Inside, ESP32 and LoRa radio on one board.

Ready in under a minute.

  1. 01Switch on.Hold the power button. The bottom LED turns yellow: the network is ready.
  2. 02Connect.Open the Athlense app and connect AthLink over Bluetooth. No router needed.
  3. 03Go.Switch on the photocells near AthLink: they pair automatically and the LED turns green.
Athlense app · iOS and Android

Every time, the moment it happens.

Follow and manage the whole session from the phone you already own. Times, photocells and network: all in one app.

Live timesEvery pass shows up instantly.
TelemetryBattery, GPS and signal for each photocell.
Remote controlRoles and beam from your phone.
CSV exportYour history wherever you need it.

Works wherever you train.

OfflineTiming works even without internet.
Splash resistantDesigned for IP54.**
USB-CFull charge in about 1.5 hours.
Always up to dateFirmware updates from the app, with a safe dual copy.

Tech specs

Size and weight
Body about 107 × 41 × 20 mmAntenna about 51 mm, SMA connectorWeight about 100 g
Connectivity
Bluetooth LE to the smartphoneWi-Fi for firmware updates onlyNo router needed
Radio
LoRa 433 MHz, EU licence-free bandUp to 2.5 km in open field*Continuous reception
Devices
Up to 8 at onceAutomatic recognitionCoordinated anti-collision network
Data
Live times on your phoneOver 10,000 events on boardCSV export
Battery
2500 mAh Li-ionUp to 14 hours of useUSB-C, charges in about 1.5 hours
Controls
Stopwatch button (4 functions)Power buttonDevice LED and network LED
Resistance
Designed for IP54**Dust and water splashesIndoor and outdoor use
Updates
Firmware updates from the appSafe dual copyNew features over time
App
iOSAndroid
In the box
AthLink and SMA antennaUSB-C cableUser manual plus safety and compliance informationPower adapter not included
Size and weight
Body about 107 × 41 × 20 mmAntenna about 51 mm, SMA connectorWeight about 100 g
Connectivity
Bluetooth LE to the smartphoneWi-Fi for firmware updates onlyNo router needed
Radio
LoRa 433 MHz, EU licence-free bandUp to 2.5 km in open field*Continuous reception
Devices
Up to 8 at onceAutomatic recognitionCoordinated anti-collision network
Data
Live times on your phoneOver 10,000 events on boardCSV export
Battery
2500 mAh Li-ionUp to 14 hours of useUSB-C, charges in about 1.5 hours
Controls
Stopwatch button (4 functions)Power buttonDevice LED and network LED
Resistance
Designed for IP54**Dust and water splashesIndoor and outdoor use
Updates
Firmware updates from the appSafe dual copyNew features over time
App
iOSAndroid
In the box
AthLink and SMA antennaUSB-C cableUser manual plus safety and compliance informationPower adapter not included
Compare with Sauron photocells ›

Choose how to start.

AthLink three-quarter view
AthLinkAthLink on its own. For those who already own Sauron photocells.
€329 Buy
The Athlense kit: AthLink and two Sauron photocells
RecommendedAthlense KitAthLink + 2 Sauron photocells. Everything you need to time start and finish.
€1,199 · save €128Buy the kit

Prices include VAT.

Frequently asked questions

All answers in Support ›
Do I need AthLink to use Sauron?

Yes: AthLink receives the times from the photocells over radio and sends them to your phone.

Do I need an internet connection?

Not for timing: AthLink and the photocells work even where there is no signal. A connection is needed to sign in, sync sessions and use Athlense Live.

How many photocells can I connect?

Up to 8 devices at once on the same AthLink network.

What if a photocell misses a pass?

If the finish pass is missing, double-press the stopwatch button on AthLink to end the run at the time of the press (manual finish), or press it once to mark the run as DNF; otherwise the run closes as DNF when the set limit expires. If the start is missing, you can start the run manually from the app, where you can also correct the passes of each run.

Does it work with iPhone and Android?

Yes, the Athlense app is available for iOS and Android.

AthLink.

Professional timing, finally wire-free.

* Range measured in open field with no obstacles; it may vary with the environment.

** AthLink is designed for IP54 protection (dust and water splashes). Certification in progress.

Battery life and charging time depend on use and environmental conditions. Weight is approximate.