Connecting to a HSTI Hydarscout uses an SDI12 interface. This means that any wildeye with an "S" channel will take this type of sensor, noting that the sensor must be a rechargeable wildeye. Below is the associated pin numbers for connecting an M12(Field connector) to the Hydrascout.
| wildeye | Hydrascout | Color | Pin number |
| Power | 12V SPO | Brown | 1 |
| SDI12 | SDI12 | Blue | 2 |
| Unused | Unused | Unused | 3 |
| GND | GND | Green/Yellow | 4 |