Hi Coconut Monkey,
Here is my elevator speech for Shearwater products:
- Best initial reliability for any dive computer on the market--bar none--the stats are not even close.
- The owners of Shearwater Research require that their service facilities turn-around a warranty or service issue in five days. Dive-Tronics reported this and the principles of SW told me that in a personal conversation.
- Their computers are user friendly--they have prompts to help you through the process that you are setting. Their system is intuitive.
- Their Perdix AI and Teric can be used in Rec mode or Tec mode; with two completely different manuals for each mode. No confusion.
- Battery switches are easy with the Perdix. You can use a "Copper Top", or locally available lithium batteries (both are recommended--50 hours and 75 hours run time, respectively). You can use rechargeable AA batteries. I currently have a lithium battery in my Perdix AI. Saft batteries give the longest performance at 100 hours. During my upcoming trip to Curacao, I will be logging the daily voltage values for the battery and reporting to Scubaboard upon my return. I witnessed Shearwater principles charging Terics on a cell phone charger at lunch. They then handed them out for demo dives after that. Seemed easy to me.
- The screens are amazingly clear and easy to read. I could read Lynn's Teric from 5 feet away and the Perdix AI from 8 feet away. I need my reading glass insert in my mask to read my other computers--not with the Shearwater products.
- The warranty runs with the computer, not the purchaser.
- Software updates are user friendly and online--no service center visit for an update.
I chose the Perdix AI. I like a dedicated dive computer verses a multi use watch. YMMV.
Either way, Perdix or Teric, you won't be let down. Bruce and Lynn stand by all their products--you will be treated well!
Resale is easy with a Shearwater product.
Happy with my Perdix,
markm