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OSTC Plus pre-2023

£630.00  £504.00

 

 

 

The OSTC plus is compact dive computer offering meeting the needs of sport divers and tech divers.

Firmware hwOS sport edition is ideal for sport divers (nitrox) whilst firmware hwOS tech edition is for technical divers (trimix and CCR with fixed set point).  The sport edition can be upgraded into a full trimix dive computer.

hwOS sport supports nitrox diving with three gases and is a reliable companion even for challenging dives whlst the tech upgrade is needed for trimix and rebreather diving.

The computer offers a wide range of configuration options and additional functions such as an apnea mode and a digital compass.

The OSTC plus can be operated easily and intuitively, its big colour display adjusts to the ambient light and is readable anytime, both in sunshine and in a dark lake and two integrated sensor buttons can be easily used with thick gloves or ring systems

Developed and produced entirely in Germany, the OSTC plus is backed by years of experience and continuous improvements.  Last but not least, it comes with free firmware updates, an interactive user forum, rapid service and competent support.

Standard features include:

  • Processor:        Low-power Microchip PIC18F87K22
  • Data storage:     4 MegaByte Flash memory
  • Display:            High-resolution display (IPS LCD) with ambient light sensor Field of view: 170°
  • Screen resolution: 320 x 240 Pixel Size: 2,4” (63 mm screen diagonal)
  • Connector:        Bluetooth Smart Ready (2.0 und 4.0)
  • Sensor:            Combined depth/temperature sensor 3D compass (fully tilt-compensated)
  • Battery:            Rechargeable lithium ion battery (20 h operating time/2 h charging time) or 1.5V AA battery, standby 2 years (Depending on battery, 6 months with rechargeable lithium ion battery)
  • Charges:           wirelessly via inductive charging
  • Controls:           Two sensor buttons
  • Housing:           Milled from a single block of alloy. Scratch resistant borosilikate-glass panel
  • Integrated Bungee Mount
  • Dimensions      66 mm x 65 mm x 20 mm
  • Weight            150 gr.
  • Max depth:      120 meter
  • 6 Programmable gases (Nitrox, Trimix or Heliox) - 5 pre-defined and 1 additional gas configurable during the dive should the unexpected happen
  • User definable last stop depth
  • Gauge/Apnea mode

The OSTC Plus package contains:

  • OSTC Plus Dive computer with installed Li-Ion battery
  • Firmware by Heinrichs Weikamp
  • Solid neoprene box
  • Charging Pad

These were available in different colours but we now have just one of the black models available.


  • Manufactured by: Heinrichsweikamp

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