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Was $200.00 Now $100.00
Reefmaster RM-4K (SL350)
Reefmaster RM-4K (SL350)
Reefmaster RM-4K (SL350)
Reefmaster RM-4K (SL350)
Reefmaster RM-4K (SL350)
Reefmaster RM-4K (SL350)

Reefmaster RM-4K (SL350)


Regular price £341.00 Sale price£337.99 Save £3.01
Tax included. Shipping calculated at checkout.

  • In stock
  • In stock
  • Free UK & Ireland Shipping


Experience unparalleled ease-of-use with the ReefMaster RM-4K, featuring a pocket sized design with a 14 megapixel Panasonic® CMOS image sensor and ultra-high definition 4K video. The compact, portable design ensures you can take the ReefMaster anywhere. The built-in fisheye lens allows you to closely approach your subject while still keeping everything in the picture. And with SeaLife’s know-how in underwaterlighting, you’ll easily be able to pair your RM-4K with a variety of Sea Dragon Photo/Video lights for any underwater scene or situation.


  • 14 Megapixel Panasonic® CMOS image sensor for sharp, colourful pictures
  • 4K Ultra HD Video at 30fps and 1080p HD Video at 60fps
  • 40m Compact Underwater Housing
  • Humidity Control with replaceable Moisture Muncher dry capsules
  • Wide Angle 140° Fisheye Lens to get close to your subject and still get everything in the picture
  • 2.0” TFT colour LCD Display to keep you on your subject and for quick review of your underwater adventure.


  • Waterproof to 130ft / 40m using “Pressure-Lock” thumb screw sealing system
  • Easy 4 button controls for easy operation
  • Wi-Fi to wirelessly preview, download and share pictures & videos to smart phone or tablet with a free app from Google or Apple
  • Expandable memory with micro SDHC/SDXC memory card up to 128GB
  • Compact design for easy handling and lightweight travel
  • Removable Li-ion rechargeable battery (950 mAh / 3.8V / 3.6Wh for 2+ hours video or 500+ images)
  • Focus from 12” (30cm) to infinity – optional Macro Lenses available
  • Time lapse shooting at set time intervals – saves as video file or series of still images
  • Underwater colour-correction modes – Underwater Deep for diving and Underwater Shallow for snorkelling
  • Image Stabilisation - Electronic stabilisation reduces vibration and hand movement for smoother video recording
  • Expandable with one or more SeaLife Sea Dragon Photo/Video Lights

Free UK & Ireland delivery on order over £50.00. If order is placed before 12pm and item is in stock will be dispatched same day.

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