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Old 10-22-2012, 04:47 PM
moppy moppy is offline
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Join Date: Feb 2009
Location: Abbotsford
Posts: 106
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Default pH and Temperature Probes

Anyone know how long these probes are supposed to be good for (how long they are supposed to last before you need to purchase another one)?

Or how often you are supposed to calibrate them?

Thanks...
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