UAP.COM Hydroacoustic Modem
Hydroacoustic Sensor
The CROC Tether Reel series by Reach Systems delivers unmatched durability, portability, and flexibility for remote and autonomous systems deployment. Engineered for professionals working with ROVs, robotic crawlers, sonar systems, and Autonomous Surface Vessels (ASVs), the CROC reels are built to perform in demanding field environments.
Available in three sizes to suit any application, each CROC reel offers reliable manual payout and retrieval as a baseline, with a full suite of upgrade options — including motors, level winds, and distance counters — to match your operational needs. And with the Smart Winch option, any CROC reel can be operated remotely over wireless networks or configured for semi-autonomous payout and retrieval, giving your team greater control with less manual effort.
Whether you need a compact reel for portable deployments or a heavy-duty solution for large-diameter cable, the CROC series scales with your mission.
Product Variants

CROC Mini Tether Reel
Originally designed for deploying ROVs and sensors from Autonomous Surface Vessels, the CROC Mini is the go-to choice for portable and remote applications using small diameter tether. It stores up to 200m of 5mm cable and can be upgraded with the Smart Winch option for remote or semi-autonomous operation over wireless networks.

CROC Tether Reel
The standard CROC reel delivers unparalleled durability and ease of use in a compact package, supporting over 1km of 5mm diameter tether for a wide range of applications including ROVs, robotic crawlers, and sonar systems. Available with motors, level winds, and distance counters, it can also be upgraded to the Smart Winch option for remote or autonomous control.

CROC XL Tether Reel.
The CROC XL is the largest in the series, capable of holding up to 500m of heavy-duty 10mm diameter cable while still offering the portability to fit inside a Pelican 370 case or ship on a pallet as a complete system package. Like all CROC reels, it supports the full range of upgrades including the Smart Winch option for remote or autonomous control.
| Feature | CROC Mini | CROC (Standard) | CROC XL |
|---|---|---|---|
| Cable Capacity | Up to 200m | Over 1km | Up to 500m |
| Cable Diameter | 5mm | 5mm | 10mm |
| Portability | Portable / remote use | Small package | Fits in Pelican 370 case |
| Smart Winch Option | Yes | Yes | Yes |
| Level Wind Option | Not mentioned | Yes | Yes (implied) |
| Distance Counter | Not mentioned | Yes | Yes (implied) |
| Primary Use Case | ASV / ROV deployment, portable applications | ROVs, crawlers, sonar - broad use | ROVs, sonar, pallet shipping |
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