





500mL Quick-Swap Water Sampler
The 500mL Quick-Swap Water Sampler is a professional environmental tool engineered for the FIFISH E-Series platform. Designed for precision ecological surveys and industrial analysis, it enables high-integrity water collection across varied underwater environments. Its most significant upgrade¡ªa unique, detachable sampling tube¡ªallows operators to seamlessly swap collection cylinders in the field, ensuring contamination-free results and an ultra-fast operational workflow from dive to laboratory.
Compatible ROV Models
E-GO
- Modular Detachable Tube: The collection tube can be removed quickly for sterilization or immediate sample transport, enabling rapid continuous missions.
- Optimized E-Series Integration: Custom-designed for the E-GO platform’s advanced expansion capabilities.
- Contamination-Free Workflow: Using sterile swap-out tubes eliminates cross-contamination risks between different sampling sites.
- Rugged & Corrosion-Resistant Build: Constructed with high-grade and marine-resistant materials for reliable use in both fresh and saltwater.

Specifications & In the Box
SpecificationsVoltage: DC 16.8 – 26 V
Current: 0.5 – 2 A
Working Temperature: 0°C – 60°C (32°F – 140°F)
Sampling Capacity:500 mL (16.9 fl oz)
Depth Rating: 350 m (1,148 ft)
Communication Mode: Ethernet
In the Box1 × 500mL Quick-Swap Water Sampler
1 × Mounting Base Bracket
1 Set × Installation Kit (Screws, O-rings, & Tools)
1 × User Manual
Frequently Asked Questions
Have questions about our underwater ROVs or your order? We’re here to help!

What is the maximum depth rating for the 500mL Quick-Swap Water Sampler?
350 meters (1,148 feet).
What is the benefit of the "Modular" design of the 500mL Quick-Swap Water Sampler?
The modular design allows for greater flexibility in configuration. It can be easily mounted or dismounted from the E-GO’s accessory rails, and its water sampler is designed for easy and quick replacement to prevent cross-contamination between sampling missions.
Can I buy extra replacement sampling tube?
Yes, replacement tubes are available separately in the QYSEA official store. This allows efficient multi‑depth / multi‑point sampling without on‑site pouring.
Can I record the exact coordinates of the location where a water sample was collected?
Yes. To achieve high-precision positioning for your samples, we recommend using the GNSS Locator (compatible with the E-GO series). By using this module, the ROV can record real-time GPS coordinates when it is at the surface. For underwater sampling, the system logs the last known coordinates or works in conjunction with our positioning software to help you tag and map the specific location of every 500ml sample for later analysis.
