It kept me warm on my last dive at 51 degrees. To get this heater to work, you have to boil the heater element to get it to a fluid state. This is the recommended state for storage. Whe you are ready to use it, you press a button on the element and the fuild in the heater starts to crystalize. It is during this phase that the warmth occurs. The only issue I have is that you have to boil the heater element to return it to a fluid state. That is difficult to do on a dive trip if you do not have access to a pot of water and a stove in the hotel or at the dive site. As such, it is good for one shot for your trip. You could have a small camp stove and a pot of water to solve this, but who has room for that with all of our dive gear.
With this mini gauge, you no longer have just a go/no go indication. Spend the money as this is well worth it.
This is a must have if you plan on traveling by air anywhere with the spare air. I am not sure about the accessory pack that came with it. Its a bit cheezy for my taste.
I get alot of kidding from my dive buddies about my spare air. However, I love the small size, ease of filling, and that I can remove the regulator for air transport. They can kid all they want, I feel safer with it.
When I received the line cutter, I was impressed with the design and its light weight. However, I wished that the cutting surface as sharpened from the vendor was sharper. I sharpened mine.
It is very large and so far, hold a BC, wetsuit, and most accessories. Go for it and buy it now. You will not be sorry......
I love the camera, both on dry land and below the water. It can be used both places with ease.
I dove with a friend that had a different light. The difference between her 4 cell light and my 8 cell light was like night a day. I was able to illuminate the bottom 20 feet down. I love the light.... The backup light is small and easy to pack in the BC when not in use.