100-Meter (328ft) Tether Spool

Q: Is the tether fragile? How much pulling force can it withstand?

High-Strength Material: The tether is reinforced with a high-density Kevlar fiber. Tensile Strength: It can sustainably withstand a pulling force of approximately 100kgf. This is strong enough to safely tow a fully-loaded ROV back to the surface in an emergency.

$429.00

The 100-Meter (328ft) Tether Spool is a compact and portable cable management solution tailored for the FIFISH V and E-Series. Featuring a lightweight triangular frame and a high-strength Kevlar-reinforced tether, it offers the perfect balance between mobility and durability. It is the ideal choice for quick inspections and rapid-response missions where agility and organized cable handling are essential.

Compatible ROV Models
V-EVO, V6 EXPERT, E-GO

Key Features:

Compact Triangular Spool: Space-saving design optimized for portable 100m tether storage and transport.
Kevlar-Reinforced Strength: High-tenacity fibers providing 100 kgf of breaking force for secure operations.
Anti-Tangle Ease: Specialized material finish that prevents cable kinks and minimizes snagging during use.
100 kgf Breaking Force: High-tension resilience ensures secure ROV retrieval in varied water conditions.
Universal Compatibility: Fully compatible with all FIFISH V-Series and E-Series ROVs.

Select Option:

For V-EVO (White)

$429.00

For V6 EXPERT / E-GO (Electric Lime)

$429.00

Want to customize? Talk to our specialist.

Frequently Bought Together:

Sunhood for FIFISH Standard Remote Controller

$49.00

Reduce glare and improve screen visibility. This essential accessory ensures a clear, shaded view for precise underwater navigation in bright conditions.

Learn more

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Take a Close Look

Compatible ModelV-EVO (White), V6 EXPERT (Electric Lime), E-GO (Electric Lime)

SpecificationsTether Length: 100 m (328 ft)
Color: V-EVO: White, V6 EXPERT & E-GO: Electric Lime
Spool Shape: Triangular
Breaking Force: 100 kgf (220 lbf)
Material: Kevlar
Dimension: 23 × 23 × 23 cm (9.1 × 9.1 × 9.1 in)
Weight: 1.9 kg (4.2 lbs)

In the Box1 × 100m Tether Spool

Frequently Asked Questions

Have questions about our underwater ROVs or your order? We’re here to help!

Our customer support is available Monday to Friday: 9:00 a.m. – 6:00 p.m. (UTC+8).Average response time: Within 24 hours.

Which FIFISH ROV models are compatible with the 100m tether? Can it be used with other brands?

Compatibility depends on the specific tether version (indicated by color):

White Tether: Designed for the FIFISH V-EVO.

Electric Lime Tether: Designed for the FIFISH V6 EXPERT and E-GO.

Cross-Brand Compatibility: No. This tether is not compatible with other ROV brands. Differences in signal transmission protocols, pin configurations, and proprietary waterproof connector designs ensure it only functions with the specified FIFISH models.

Is the 100m tether suitable for professional offshore work?

While the 100m tether is built to the same industrial standards as our longer cables, it is best suited for:

Shallow Water Operations: Ideal for swimming pool maintenance, hull inspections, and shallow-water dock surveys.

High Portability: Its shorter length makes it the lightest and most compact option for quick deployments or travel.

Low-Current Environments: Perfect for areas where you don't need a massive horizontal radius and want to minimize cable drag.

How do I choose the right tether length (100m vs. 200m vs. 300m)?

Selecting the correct length depends on your operational depth and the distance from your deployment point:

100m (328ft): Ideal for recreational diving, swimming pool inspections, and shallow dock or hull surveys.

200m (656ft): The professional standard for most inland waterways. Suitable for river, reservoir, and coastal search-and-recovery operations.

300m (984ft): Professional engineering grade. Required for deep-water dam inspections, long-distance internal pipe surveys, and offshore wind farm foundation checks.

Is the tether fragile? How much pulling force can it withstand?

High-Strength Material: The tether is reinforced with a high-density Kevlar fiber.

Tensile Strength: It can sustainably withstand a pulling force of approximately 100kgf. This is strong enough to safely tow a fully-loaded ROV back to the surface in an emergency.

Why does the ROV require a Tether Spool instead of a wireless connection?

This solves the "underwater radio black hole" problem. Because radio waves do not travel well through water, a physical tether is the only way to support the high bandwidth required for 4K HD real-time video transmission while providing a physical safety line for equipment recovery.

Our customer support is available Monday to Friday: 9:00 a.m. – 6:00 p.m. (UTC+8).Average response time: Within 24 hours.