What is the main difference between the new and previous models.
1. Housing strength. In the old model, a soft plastic tube was attached to the housing with a scale and could be dislodged or lost due to external influence. The new model is a monolithic, durable body that requires the use of a tool to damage.
2. Accuracy of readings and ease of reading. You can compare the two scales.
3. Maximum suitability for shnorkeling, initial training and also as a safety device for decompression stops
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