About The Author

Kevin Zulonas

I am the mechanical engineer who did the mechanical design of the Petrel and NERD. I work to ensure Shearwater’s products are as robust and reliable as we can make them.

Recent Posts by Kevin Zulonas

Resolving Battery Problems with Petrel 1

February 27, 2015

Resolving Battery Problems with Petrel 1

If your dive computer is experiencing spontaneous resets, flickering, low battery life, or fluctuating battery levels, then this article will tell you how to fix this problem.

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Tern & Tern TX

Tern & Tern TX™
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Shearwater Research will be at the following dive shows:

SPOEX

Read More / Feb 22, 2024 - Feb 25, 2024

マリンダイビングフェア (MDF)

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ADEX Singapore

Read More / Apr 12, 2024 - Apr 14, 2024

DRT TAIWAN

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TDEX Thailand Dive Expo

Read More / May 16, 2024 - May 19, 2024

MIDE Malaysia International Dive Expo

Read More / Jun 7, 2024 - Jun 9, 2024

DRT Phillipines

Read More / Sep 6, 2024 - Sep 8, 2024

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