SiS Sensoren Instrumente Systeme GmbH

SLB 6000 Strobe Light Beacon

SLB 6000 Photo


  • Member of the Marine Recovery Beacon Family
  • Titanium housing
  • Up to 10 years long term deployment time with Kantseals
  • 2 years deployment time with O-rings
  • All mechanics calculated with 50% extra safety
  • Small housing (60 mm diameter, 530 mm length)
  • Powered by 3 D-type cells of any chemistry
  • Integrated power switch
  • Daylight off, intensity, flash rate and burst flashes selectable
  • Number of flashes per set of batteries 50 000 up to 400 000 single flashes depending on the chemistry of the battery
  • Optional automatic mode for constant number of flashes
  • Water depth up to 6000 m
  • Triggered by pressure switch
  • Trigger threshold variable (standard 30 metres)
  • Double axial Kantseals or O-ring seals
  • Strobe cap waterproof up to 6000 m
  • Separate strobe cap as an option

The SLB is a Xenon Strobe Light Beacon. It can be deployed for very long time in water depth up to 6000 m. If one uses the Kantseals, which are standard from the factory, the mooring time is mainly limited by the self-discharge of the batteries.

The beacon helps the finding of deep-sea landers and underwater moorings that have been released acoustically on a specific command or other surfaced marine platforms as remotely operated vehicles (ROVs) or autonomous underwater vehicles (AUVs). This assistance is useful at night and with line of sight conditions. With additional equipment of the Marine Recovery Beacon series of products, one has the means to recover one's instruments at any time under any environmental circumstances. All products use the same titanium housing with double axial seals and the triggering controlled by a pressure switch. When submerged the strobe is inactive and will switch on when surfaced. To better attract attention, the flasher can be set to permanent flashing or periodic bursts. All kinds of D-type batteries can be used. The number of flashes is dependent upon the chemistry of the battery from 50 000 to 400 000 at full intensity for one set of batteries. Automatic adjustment to a constant number of flashes is optional. The intensity and flash rate are then determined internally from the type of battery used.

Specifications (Preliminary)

Mooring depth6000 m
Pressure switch threshold30 m standard, other depths on request
Dimensions (l x d)530 mm (case) + 70 mm (strobe cap) x 60 mm
Mass without batteries5.2 kg
Displacement1.7 dm3
Power supply3 D cells of any chemistry - NiMH, Alkaline, Lithium, peak current 1.4 A
Mooring life2 years with O-rings, up to 10 years with Kantseals, not allowing for battery self discharge
Flash rateAdjustable from 15 to 60 flashes per minute
Number of flashes50 000 up to 400 000 single flashes per set of batteries depending on the chemistry of the battery. Optional automatic mode for constant number of flashes
Burst flashesIn addition to the flash rate one can adjust permanent or periodic burst flashes to direct one's attention to the flasher
Visible rangeUp to 4 nautical miles at transmissivity 0.74

Additional Information

SiS GmbH reserves the right to change specifications without prior notice.

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