For sale is the Apogee MQ-510 par meter. This is by far the best and most accurate par meter for LED and T5 lighting. A while back bulk reef supply found some issues with this par meter and had apogee correct it but I purchased this after that happened and called to make sure. So this is the most up-to-date version. This is a used par meter but I only used it a handful of times, how many times can you really use it? It was purchased 6 months ago.

I am asking $375 and you cant buy them new for less than $500