About This

No more complicated wires are needed, and the programable temperature controllers are friendly to growers, staters
Buzzer Alarm: High and low temperature or humidity alarms, support custom adjust
Dual relays: Both controllers offer two power outlets; You can plug in heating equipment, and a ventilation fan on the temp controller, and plug a humidifier and dehumidification equipment on the humidity controller
Diy the ventilation system for your grow tent gets more fun
Support calibration; The Package includes a temperature Controller and a humidity controller