BioGreen TER2/US Thermo 2 Digital Greenhouse Thermostat with Summer/Winter Function 2 Years Warrenty, Green

Very good and easy to setup and very dependable

Good item to have for any greenhouse.

Good

I bought this because the Amazon page says it supports heaters up to 3000 watts. However, I just got delivery and both the box and the instructions say it can only support 1500 watts. Buyer beware - bait and switch here!

The controller was working fine since purchased last Sept 2023. It has a 2 year guarantee.8 months later (a few weeks ago), the controller stopped working and just emitted a constant error tone.We have two of these units, side by side, and the other one is still working fine.I submitted a warranty claim and provided all the information requested. Then, dead silence from the company. Their warranty claim process yields no paper or digital trail of any kinds. No ticket number, contact information, nothing. I am still waiting for them to contact me with a resolution.[Edit]The company finally replied and sent out a replacement unit.So, I give them 4 stars for standing behind their product. I did not give them 5 stars because of the lack of communication and making me wonder if they were processing it at all. If they communicated with customers better I would give them 5 stars

Working great to heat my greenhouse! The other two thermostats I ordered didn’t even last a day! I wish I had ordered this one first! A little more pricey, but oh so worth it! Thank you for making such a great product!

This product was very easy to setup. Purchased two since we had two heaters. Prior to purchasing, I had to manually monitor the greenhouse to make sure the plants were surviving our winter / or not overheating. Now I have to the digital readings point outward where I don't have to leave the house and can read them to validate that the requested inside temperature is being maintained. I can tell when the heater fans start up based on LEDs and when the inside temperature is perfect for our plants.I would recommend this product if you want it to automatically control your heater(s).

This seems like a premium-quality control, and I hesitate to critique it so harshly, but it has a really weird design choice that I have a hard time forgiving. If the temperature in your greenhouse exceeds 108F (which is quite easy if you're measuring temperature at higher points), the unit will error out, sound an alarm--AND SHUT OFF.I had this happen to me about a week after I put the unit in, forgot to open a door, and came back half an hour later to a tunnel full of plants that had reached 128F as the fan had shut down creating a solar furnace. Fortunately I was there fast enough to spray everybody down and open enough things up that no permanent damage was done, but it was far too close for comfort.108F seems an absurdly low limit for a greenhouse thermostat, especially when the error behavior is to literally shut the fan off and basically accelerate roasting everything to death. It would make more sense if the threshold was like 130 or something where the plants are probably already dead.As it is I am debating whether to return this simply because of this behavior. At the very least, if you buy this, be really aware that this is how it works.