TrolMaster Humidistat Station (HS-1） grower's choice 720 Customized programming allows almost limitless

Customized programming allows almost limitless degree of control

Applications are best made in late evening or early morning when insects are sedentary and temperatures are moderate and humidity is high

No other nutrient supplement on the market contains it

Wear resistant shafts and impellers

Tested thoroughly in soil

TrolMaster Humidistat Station (HS-1） grower's choice 720 Customized programming allows almost limitlessThe HS 1 from TrolMaster is used to control commercial dehumidifiers. Most larger commercial dehumidifiers have a low volt control option so the dehumidifier can be controlled by an external humidistat. The HS 1 works and is wired exactly like an external humidistat. The HS 1 is the best way to control your dehumidifiers by eliminating the need to control the high amperage inrush current associated with dehumidifiers.