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I got mine the other day. It seems accurate but I’m just checking against a cheaper handheld refractometer that maybbe off. Hard to tell. One thing I did notice and is why I asked. The SG and PPT are off but it does say sg is +-1 and PPT +-2
My temperature is 10° off lower.
My replacement should be here Saturday.
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93G Rimless Cube
Current Tank Info: 93G Rimless Cube
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