The Locator-S1 is a digital hydro acoustic locator device with an internal GPS based time sync module.
The Locator-S1 does not require tether integration for top-side communication. It only requires external power 10-18V to be provided
from the underwater vehicle. Time-sync with the top-side is achieved using its internal GPS. That makes it perfect for integration with ROVs that don’t have an extra twisted pair in their tethers, such as a BlueROV2 with the Fathom Slim tether, or for fiber optic tethers.
As the Locator-S1 does not carry its own depth sensor, the depth needs to be provided from the underwater vehicle (ROV etc.) to the topside Master-D1 using the software API. Example of how to perform this can be found here.
This integration is already done if using an ArduSub vehicle (like the BlueROV2).
Some Locator-S1 attributes can be configured using an integrated I2C interface. This configuration is optional and not required for
Before deployment in water, the Locator-S1 needs to achieve a GPS lock. The integrated status-LED shows the condition of the GPS lock.
GPS based sync removes all tether requirements enabling very easy integration with any ROV.
Extremely small size making it perfect for even the smallest underwater vehicles.
Highly robust operation in areas with reflections (shallow water, around installations etc.)
1 x Water Linked Locator-S1
Topside API Integration
Time before re-sync
4 times per second
<1% of range
60 mA at 12V
3 position 0.1” (2.54mm) Crimp Connector Housing
Weight (in air)
-10 to 60 °C
14 to 140 °F
The Locator-S1 has a simple UART interface which is used to change the channel of the locator.