TrolMaster - Dry Contact Station Single Pack with cable set growing-accessories This aggressive formula contains proprietary

This aggressive formula contains proprietary blends of calcium to ensure your plants thrive

This narrow electrode easily fits into test tubes

It is tough and will easily handle even the harshest grow room environments

and a 54 watt LED light panel

This results in better overall plant growth and higher yields

TrolMaster - Dry Contact Station Single Pack with cable set growing-accessories This aggressive formula contains proprietaryThe Trolmaster DSD 1 Dry contact module provides a simple and flexible solution to who want to connect & control devices to the Hydro X using a dry contact or relay to activate the device. Some equipment requires either normally open or normally closed contact closure in order to activate the equipment. The DSD 1 is the product that you need to control those types of devices. * The DSD 1 can be configured to work as the other Trolmaster power modules