Today the Ion director was announced but I have a couple of questions that remain unanswered.

1: How many tests can be performed with the 500ml reference fluid bottles?
2: What is the price of reference replacement bottles and in what sizes will they come?
3: What is the expected life expectancy in months and/or number of tests if the
Ion Director probe?
4: How long can both the reference fluid and probe be stored? (I currently consider pre-ordering the Ion Director but not use it on my current tank as it will be replaced in the first half of 2020 so I would be storing it untill then)