TrolMaster Expander Station 4 Device Controller Thermometers Accurate within å± 4% of

Accurate within å± 4% of reading with a resolution of 0

How It Works

and KCl solutions for calibrating and storing your pH probes

Relax And Enjoy The Fruits Of Your Labor

Solar Gaia is an organic-based formulation of humic compounds utilized to facilitate fertilizer uptake

TrolMaster Expander Station 4 Device Controller Thermometers Accurate within å± 4% ofThe 4RS 1 is a universal 4 outlet power expansion module. It can be used with any of TrolMasters plug in style device modules to expand the number of devices that can be controlled by the Hydro x. A single 120 240 volt trigger cable on the 4RS 1 connects to your device control module. When the device module is activated by the Hydro x, the 4RS 1 trigger cable will turn on each of the 4 receptacles on the 4RS 1 with a 3 second time delay between each