Swellpro SplashDrone 4 and GC3-T (Thermal/3-Axis) Bundle

SplashDrone 4 is the 5th generation waterproof drone representing SwellPro’s 7 years of knowledge and understanding of drone waterproofing technology.

SplashDrone 4 is the all-new waterproof flight & float platform designed for multipurpose operation in any harsh environment.

The bundle includes Swellpro’s waterproof 3 axis thermal camera combines both a high resolution thermal infrared camera and a full HD low-light camera with a dimmable LED flashlight, which can provide both infrared and visible light imaging simultaneously.

(Price on request)

The 5th Generation of the Swellpro Waterproof Drones has arrived – and it’s better than ever.

The SD4 represents over seven years of design improvements and experience, resulting in Swellpro’s most powerful all-digital floating & flying platform to date.

Without doubt a new benchmark for Waterproof Drones has again been set, quite simply there is no drone in the world like it.

  • IP67 Rated Waterproof Drone
  • IP66 Rated Controller – Now With The Option To Mount A Smart Phone Or Tablet
  • 5KM Image Transmission Range On The Standard Antennas
  • Upgraded 30 Minute Flight Time
  • 2KG Payload Capacity
  • Slide-in Smart Battery

The SD4 comes packed with loads more features and an even bigger range of payloads including the established three axis gimbal camera, which now shoots RAW files.

A collection of payload release mechanisms are still available as well as a gamechanging thermal imaging camera option. The Splashdrone 4 also comes equipped with a new and improved powerful mobile APP.

Microprocessor Controlled Smart Drone Battery

waterproof drone battery

Each slide-in SD4 battery has its own integrated microprocessor controller, teamed with 6500mAh of high-performance lithium technology cells to provide up to 30 minutes of flight time. The SD4 smart battery provides:

  • Real-time power monitoring and alerts
  • Integrated balance charging to ensure battery health, safety and long life by constantly monitoring battery health, state-of-charge and temperature.
  • Simpler battery storage and maintenance as the controller manages battery health even when not in the aircraft.
  • Fast, slide in battery replacement. Integrated connectors allow for wire-free installation and replacement.
  • Battery charging and usage data logging to allow for better battery management and event recording.

High-visibility, innovative waterproof body design

The design of the SD4’s fuselage brings together SwellPro engineers’ deep experience and understanding of waterproof drones, materials and processes. Its structure is simple in design, attractive in appearance, lightweight, strong and most importantly functional. The body has been designed to facilitate upgrading, repairing or replacement of parts as well as supporting various custom modifications thanks to integrated mounting points. A hinged, waterproof hatch makes changing the slide-in battery module fast and easy.

Powerful propulsion system with tuned flight computer

Following 18 months of intensive R&D, the SwellPro SD4 marries new motors, digital reflux speed controllers (ESC), an all-new custom flight computer and gyroscope to deliver a fully featured multi-purpose flight platform. Able to fly in challenging weather conditions with variable loads, the new SwellPro SD4 provides a reliable and flexible solution to the challenges of operating safely over water for long distances.

Waterproof motors

The newly designed 3510 motors have strong and stable performance with high load-carrying capacity and excellent flight performance. The motors have been specifically designed for the marine environment with premium materials, excellent waterproof coatings and salt-water rated bearings to resist damage from salt and sand in the marine environment.

Carbon fiber propellers

The SwellPro SD4 utilizes tuned and balanced 12” quick-release carbon-fibre propellers which are proven, durable and unaffected by marine corrosion. Their stiffness and accuracy of pitch make these an ideal solution for high-performance aircraft. The propellers are secured with quick-release bayonet mounts instead of the more common spin-on propellers that can detach when the drone is on the water.

New Reflux Electronic Motor Speed controllers (ESC)

The SD4 employs new 40A high-speed, digital reflux, energy-saving speed controllers. With fast response, low noise and integrated heat management the SwellPro SD4 has shorter braking distances, more stable flight and lower internal temperatures to help ensure flight safety and reliability.

Payloads up to 2kg

The SD4 can comfortably lift a payload of 1.5kg with a maximum payload weight of 2kg.

Integrated Anti-collision Strobe

On the top of the SD4, a bright white aircraft anti-collision strobe helps the pilot and other aircraft pinpoint the drone in low-light and darkness – meeting the regulatory requirements of many regions. The strobe can be activated or deactivated in flight by the SwellPro app.

Fully digital radio systems for clear, long-distance transmission

Using new advanced wireless digital radios, the SD4 can broadcast its image up to 5km away while airborne. Innovative adjustable antennas can be setup to maximize range depending on the requirements of the mission being flown. When flying just 0.5m above the water, range is still up to 2.8km and floating on the water surface the transmission range is 500m.


Unlike many other drones, the SD4 allows for multiple devices and apps to be simultaneously connected to the drone’s flight systems either by multipoint WiFi, ethernet or serial interface.

Automatic Flip Function

If the aircraft is flipped in the water by a wave, the SD4 flight computer immediately locks the propellers for safety. When the pilot re-arms the drone, the drone will automatically perform a self-righting action and be ready for take-off.

Dark Mode

For covert, nighttime missions or to prevent startling wildlife at night, the drone’s navigation lights can be extinguished via the SwellPro app.

Open Platform Integration

Open Flight-Control API Interface

Using the SwellPro Open API, third-party manufacturers and users can interface to the SD4 flight platform. Third-party equipment can gather real-time flight data to provide context to sensor readings and to enable control of aircraft functions, gimbal, camera trigger and third-party instruments for industry-specific uses.

Pass-thru Two-way Serial Data Port

To facilitate third-party integrations, the SwellPro SD4 and remote controller are equipped with a unique pass-thru serial port (UART/TTL) that allows data generated from third-party payload sensors on the drone to be passed directly through to the serial port and WiFi interface of the remote controller. This two-way interface also allows real-time control signals from third-party equipment on the ground to be passed back to the sensor or drone flight computer.

Direct Ethernet Port

As well as multipoint WiFi, the SD4 remote controller also provides a wired ethernet connection. This port replicates the functionality of the WiFi and allows a wired connection for a PC or other physical ethernet equipment.

SDK for Drone, Cameras and Radio System Integration

The SwellPro SDK for SD4 facilitates interfacing to flight instructions and flight telemetry, camera control and settings as well as the digital radio system.

Drone WiFi hotspot

In addition to the WiFi hotspot on the remote controller, the SD4 drone also supports local connections over WiFi for simplified connection of third-party payloads without the need for cables. The drone’s WiFi network is transparently extended down to the WiFi network of the remote controller over the SwellPro datalink.

Technical Specifications

Waterproof Rating: IP67
Drone Weight(Including Battery & Props 2.18KG
Axis Diameter 450mm
Max Ascend Speed 4 m/s
Max Descend Speed 4 m/s
Max Speed 22 m/s (49MPH) in ATTI mode & 10 m/s (22mph) in GPS Mode
Max Tilt Angle ATTI: 12.5°; ATTI (fast): 25°
Max Takeoff Altitude: 120m in GPS mode & ATTI mode – there is no limitation
Max Wind Speed Resistance: 8 m/s (18MPH) (11-16knots)(F4); 14 m/s (31MPH) (F7) peak gust
Max Flight Time: 30 mins (no wind & no load); (approx. 25 mins with GC3-S,approx.15 mins with load of 1.5kg)
Max Flight Distance: 5 KM
Max Payload Capacity: 2KG
Propellers: Carbon fiber quick release propellers
Motors: #3509 – 740Kv
Operating Frequency: 5180 – 5875 MHz
Transmitter Power (EIRP): FCC/IC: ≤ 24 dBm CE/SRRC/MIC: ≤ 20 dBm
Working Temperature -10℃ ~ 40℃
Satellite Positioning Systems: GPS/GLONASS
Hovering Precision: ±0.5 m (vertical); ±0.5 m (horizontal)
Pass-through Serial Port: Connect to a third-party device and transfer the data of the third-party device to the remote control
UART: Allows for TTL serial port to TCP, with baud rate of 115200
Wi-Fi Hotspot IP:
Power Input: 12V/2A | 5V/2A

SwellPro GC3-T

Waterproof Thermal Camera

Swellpro’s waterproof 3 axis thermal camera combines both a high resolution thermal infrared camera and a full HD low-light camera with a dimmable LED flashlight, which can provide both infrared and visible light imaging simultaneously.

Use the thermal imaging to indeinty objects of interest, then quickly switch to the low-light mode to better identify the object with more detail. The integration of the GC3-T with the SD4 empowers lots of industries to accomplish their missions smarter and faster with far less risk and cost.

The aerial thermal imaging can help firefighters see through smoke and farmers monitor crop health from above, or to assist in search and rescue operations.



Technical Specifications

3Axis Gimbal Thermal Camera (GC3-T)
Waterproof: IP67
Axis: 3 axis(pitch,roll,yaw)
Pitching angle: -90°to 0°
Maximum control speed: Pitching 60°/s
Weight: Approx. 450g
Size: 110*100*115mm
Low Light Camera
Image Sensor: 1/2″ 12M Starlight CMOS
Lens: FOV: 66°
Burst: Shut/3/5/10pcs
Interval Shut/1/3/5/10s
Video Resolution: FHD: 1920*1080 30/60p | HD: 1280*720 120/60p
Max Video Stream: 64Mbps
Picture Format: JPEG
Video Format: MP4 / MOV
Support Memory Card: Micro SD CARDS with a maximum capacity of 128GB, write speed ≥15 MB/s, and transmission speed of Class 10 or above or UHS-1 rating are supported
Working temperature: -10℃ to 40℃
IR Camera
Image Sensor: Vanadium oxide uncooled infrared focal plane detector
Lens: 19mm/25mm
Resolution@frame rate: 640*512 @30p/48p/50p
Palette: White hot / black hot / Rainbow / Rainbow high contrast / iron red / lava / Sky / medium gray / grey red / purple orange / Special 1 / warning red / ice fire / cyan red / special 2 / gradient red / gradient green / gradient blue / warning green / warning blue
Crosshairs: Show (default), hide, move
contrast ratio: Slider adjustment (0-255), default middle value
Brightness: Slider adjustment (0-511), default middle value
DDE gear (image enhancement): Off / On (default on)
Temperature measurement OSD on / off: Off / On (the default displays the highest, lowest, and center point temperatures)
Temperature measurement unit: Centigrade, Kelvin, Fahrenheit
Temperature measurement alarm: Off, low temperature alarm, high temperature alarm, high and low temperature alarm
Low temperature alarm setting: -20℃~+150℃
High temperature alarm setting: -20℃~+150℃


The Splash Drone 4 includes the following items:

  • ×1 Splash Drone 4 Drone
  • ×1 GC3-T 3 Axis Gimbal Thermal Camera
  • ×1 SD4 Remote Control
  • ×2 Pair of Propellers
  • ×1 Smart Battery (IB4)
  • ×1 Charger for IB4
  • ×1 AC Power Cable
  • ×1 Power Cable for Remote Control
  • × 1 Micro USB Cable
  • ×1 Hex Screwdriver
  • ×2 Hex Screws
  • ×1 Barometric Vent (extra)
  • ×1 User Manual
  • ×1 Certificate
  • ×1 Maintenance Guide
  • ×1 Carrying Case.
Weight 2 kg


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