mq-510

Hi guy... I am interest in buying a Par Meter. Which one do think is better between MQ-510 and MQ-520??? I know that MQ-520 is only Cable. But can you buy a separate monitor device or it? Or it always need to be plug to a PC? Also, I have a Deep Pool-like Tank. I think MQ-520 is best because...

I am working my way out of the hobby and am selling my par meter. I have used this only a few times. I bought this from Bulk Reef Supply and the current price from BRS is $538.00. I am selling mine for $425.00 with shipping included. I am including a printed manual for it. My paypal is...

So.... Round 2 has started! Skip to it here: https://www.reef2reef.com/threads/par-shootout-seneye-reef-monitor-v2-vs-apogee-mq-510-full-spectrum-underwater-quantum-meter.292681/page-3#post-3612209 Original Round 1 continue on below: Background: I bought this Seneye Reef Monitor off...