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For those that has it, do you leave the probe submerged in the water all the time and leave it constantly on? I just want something that tells me easily what my salinity is.
does the 9v battery will last awhile or I need to spend that $12 on a power adapter.
tell me how you use it or is it even worth the money? I am getting a used one btw.
does the 9v battery will last awhile or I need to spend that $12 on a power adapter.
tell me how you use it or is it even worth the money? I am getting a used one btw.