TrolMaster - Hydro-X Pro Controller with 4-in-1 Sensor (Temp / Humid / CO2/ Light ) and Cable set, Free Phone App NEW Environmental Controllers HI 9813-6 includes all the

HI 9813-6 includes all the features of the HI 9813-5 while incorporating our exclusive CAL CHECKTM feature

Use any combination of DE lamps to create the spectrum you desire

This is a high quality solid brass valve designed for years of service

Excellent for hydroponic nutrient testing

TrolMaster - Hydro-X Pro Controller with 4-in-1 Sensor (Temp / Humid / CO2/ Light ) and Cable set, Free Phone App NEW Environmental Controllers HI 9813-6 includes all theTrolMaster revolutionized environmental controller technology when it introduced the Hydro X. The Hydro X Pro continues the revolution with a 10 touch screen and a web based software. The Hydro X Pro is backwards compatible with all current Hydro X control device modules. It also provides greater flexibility and allows any plug in module to be addressed to be whatever the user wants. The user can also set up each plug in module to have multiple