Suunto D9


The Suunto D9 is revolutionary dive instrument, incorporating almost every conceivable information function into a single, compact wrist-mounted unit that can also double as a watch for everyday wear. Among its many features:

  • The D9 and its sibling, the D6, are the only dive computers to incorporate an integrated (and highly sophisticated) electronic, digital compass.
  • The D9 can track up to three separate gas mixtures ranging from air to ean99.
  • A standard PC interface cable allows you to upload data to a desktop or laptop computer, enabling you to maintain a highly detailed dive log.
  • Also standard is a first-stage-mounted sending unit, giving the D9 the ability to digitally monitor tank pressure without the need for a high-pressure hose.

What Does It Need?

Normal service on this model involves periodic battery replacement. Indications that it is time for battery replacement include:

  • A “low battery” indicator appears, as covered in the Owners Manual.
  • The computer was functioning properly when last used; however, after a period of inactivity, it simply will not turn on.
  • The computer will turn on but shuts down shortly afterward, or displays erroneous information.

The cost for battery replacement, including parts and labor, is US$55 plus return shipping costs.


Every two years or 200 dives (whichever comes first), Suunto strongly recommends a bi-annual service that includes:

  • Complete disassembly of the D9.
  • Careful cleaning of all surfaces that may have been exposed to water.
  • Battery replacement.
  • Replacement and lubrication of all O-rings, gaskets and several screws.
  • Reassembly and pressure testing.

The cost for this bi-annual service is US$140 plus return shipping. (Authorized AquaLung dealers should consult their Dealer Manual for pricing information.)

It is also recommended to send in the D9 transmitter at the same time. The cost for the transmitter battery service is US$45 plus return shipping.

More extensive problems may require additional parts and labor — or even replacement. If this is the case, we will contact you with an estimate of the total cost and ask for your approval before continuing.