par sensor

For a limited time (sale ends Monday) we are offering 8% off on all PAR meters including the new PQ-510 with full-spectrum Quantum sensor, 2 meter cable and microCache Bluetooth micro-logger. The extended 2 meter cable of the SS2 model allows the microCache to be positioned further from the...

Selling two Tunze 6095s, one is six months old the other is about a year and a half old. Cleaned up and working perfectly. Shipped in the original boxes. $300 for both Kessil H380 with Gooseneck. Also about six months old $250 Biotek Marine Par Sensor BTM-3000 (Is an Apogee private labeled for...

Ok I followed willthethrill post and finally got everything put together but when I test I get low PAR readings. Tank info: 75gal reef w/ 20gal refugium 2 kessil a360w Apex controller. Purchased used Apogee SQ-120, its a few years old. Do I need to send into Apogee to get it recalibrated?

***SOLD*** ATI 4x39w Sunpower 36in, bulbs not included. Purchased new on BRS in July 2015. In great working condition. $200 plus shipping ***SOLD*** Bio Tek Marine par sensor BTM-3000- 15ft usb cable, bought brand new only used a few times, been stored in original box sense. $150 shipped...