Gavita Master Controllers Gen 2 Options:Gavita Master Controller EL2 - Gen 2 • Multiple cold-pressed kelp extracts

• Multiple cold-pressed kelp extracts

*Do not use more than 50 gallons of this product per year on your soil

pour a small amount of your sample directly into the sensor cup until it overflows

nutrient availability can be affected by soil or solution pH

Weight: 6 lbs

Gavita Master Controllers Gen 2 Options:Gavita Master Controller EL2 - Gen 2 • Multiple cold-pressed kelp extractsLighting control at your fingertips! The Master controller EL1 and EL2 Gen 2 are our entry level systems for centrally controlling large rooms with e series fixtures. The second generation of Master controllers features improved and expanded functionality that raises the bar including non volatile memory, event logging, independent sunrise and sunset settings and independent light cycles on the EL2. The EL1 has one lighting control channel and the EL2