Apogee MQ-500量子计是一种新的且改进的光测量设备，可在所有光线类型下提供更准确的读数。多年来，拥有较长防水传感器的Apogee MQ-200，一直是测量我们水族馆光的黄金标准。
然而近年来光the type of sensor used in the MQ-200 and other PAR meters have been overly sensitive to the type of light produced by light emitting diodes, and giving inaccurately bright readings. The MQ-500 rectifies this discrepancy giving much better and more accurate readings of photosynthetically active radiation from all types of light, including LEDs.
Since the explosion of LED lighting over our reef tanks, we’ve grown increasingly skeptical of the actual readings coming from our MQ-200 PAR meter, and hence have shied away from using it as much as we did back in the Halide and Fluorescent lighting days. According to Apogee, what makes the new SQ-500 so much better is“The new 500 series sensors feature an entirely new detector that took over two years to develop. It now matches the ideal quantum spectrum much more closely than the old detector”.
Apogee MQ-500的准确性提高了，略有溢价，售价为495美元，而先前的MQ-200 $ 375。幸运的是，Apogee还为MQ-200的现任所有者提供了一个升级程序，他们将能够将其仪表发送到Apogee到Apogee将传感器以$ 195的价格切换。
如果您是电子倾向的，则有一个裸露的SQ-500传感器，价格为295美元，可以将其连接到您自己的选择的数据词架上。对于我们其余的人，我们只能希望SQ-500量子表可用USB version like the SQ-200。我们期待测试新的MQ-500系列量子计，并将其与当前的MQ-200进行比较，以确定这两种设备从水族馆照明中测量的PAR测量差异有多少。[顶这是给出的
