TrolMaster - Legacy Hawkeye 3-in-1 Monitor & Logger (Temp/Humid/CO2) Sensor, Ethernet Adapter, Free Smartphone App biological fertilizer Each HLG-550 V2 uses 4

Each HLG-550 V2 uses 4 of our custom designed full-spectrum high efficiency white light quantum boards with Samsung LM301B and Blue 470nm

Package Dimensions:                        85mm(L) x 80mm(W) x 90mm(H)

Advanced channel design eliminates blockage and standing water to ensure proper and prompt drainage

gives as much light as an ordinary 150-watt bulb

it is ready for your seeds

TrolMaster - Legacy Hawkeye 3-in-1 Monitor & Logger (Temp/Humid/CO2) Sensor, Ethernet Adapter, Free Smartphone App biological fertilizer Each HLG-550 V2 uses 4The Hawkeye from TrolMaster provides an economical and accurate method to monitor an enclosed space. Some users simply need to monitor the temperature, humidity and CO2 and VPD levels without the need to actually control any devices. The CM 1 Hawkeye is designed specifically to be used as a back up monitoring system to ensure environmental conditions stay within acceptable limits. The Hawkeye comes COMPLETE with everything you will need to measure