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- Sep 17, 2017
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hello, so i bought a used pm2 from another reefer and i was able to hook it up on my other tank today. I bought 2 new temp probe along with that. Now the temp reads 123 degrees. So i figured maybe the probe is faulty so i unplugged it and hooked it up on my other tank and it reads perfectly. I tried updating the module with no avail. Anybody have a clue if this pm2 is faulty or am i doing something wrong. TIA