
Frequently asked questions
What is the difference between the SmartGro HTC-1 and HTC-2?
The HTC-1 has an integrated sensor only, while the HTC-2 adds an external probe for an additional temperature reading, such as your nutrient tank.
What does the SmartGro Thermometer Hygrometer display?
It shows temperature and humidity at the same time, and has a max/min memory so you can check the highs and lows in your grow room.
Found It Cheaper?
We're committed to offering the best prices on hydroponics equipment. If you find a lower price elsewhere, let us know and we'll do our best to match it.