• SureStat TS116 Plug In Portable Thermostat Control - 4820940
  • SureStat TS116 Plug In Portable Thermostat Control - 4820940
Retail: $58.95
Price: $44.95
You Save: $14.00 (23.7%)
Availability: In Stock - Usually ships in 1 to 2 days.




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This single stage thermostat comes prewired with an 6' grounded Plug-in power cord. Simply plug the thermostat into a standard 110/120 volt outlet. Then plug any 110/120 volt appliance into the outlet on the plug of the thermostat. Select heating thermostat to control a heater or cooling thermostat to control fans and/or louvers.
*Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats.


  • Wide temperature range: 30° to 110° F
  • Fixed 3 degree differential
  • Plug-N-Play, no wiring needed (16 amp/120v max)
  • Includes 6' plug-in cord
  • Waterproof NEMA 4X enclosure

Thermostat placement in a greenhouse: To get the desired temperature, thermostats should be located at plant height near the center of the greenhouse where they are not influenced by drafts or the temperature of an exterior wall. It is best if both heating and cooling thermostats are located together and protected from direct contact with sunlight and water. One simple way to accomplish this would be to mount the thermostat(s) to a piece of wood (or other nonconductive material) with a top on it like in the picture to the left. Wood should be painted white to shade it from the sun.

What is a Differential? The difference between on and off setpoints on a control. For temperature, it is the difference in degrees between the thermostat's on and off setting. If you set a heating thermostat with a 3 degree differential to 71°, it will supply power at any temperature below 71° and cut off at 74° (3 degrees above the setpoint). A cooling thermostat would cut on above 71° and off at 68°.

Overall Customer Rating of 8 Reviews:

Good product

This thermostat is working well with a fan unit that I purchased from another company. Paid more for the fan unit and wish I had purchased it from ACF too.


So easy

As a single elderly woman (ok old) I'm always a bit hesitant getting involved with things like this thermostat. It was easy as 1-2-3 and immediately worked and does the job perfectly. I use it in my greenhouse and connected the exhaust fan to it. I mounted it high in the greenhouse and adjusted the temperature a couple of times to where it was most effective. I've found there's about a 5 degree variance. I love it.

Stone Ridge, NY

Architect and greenhouse-based organic farmer

This is one of the simplest pieces of equipment that I’ve had the pleasure of installing in my grow house. I got the pre-wired cooling version and from start to finish it was pretty much a no brainer.
I had a couple of follow-up questions and I found that customer support/tech-support was extraordinarily helpful, knowledgeable, and easy to work with.
In short, in my experience, this is something that I recommend highly.


Great for heating my hot house

love it cycling all night saves electricity

Works as expected

I have purchased several of these and they all are working reliably. The only negative comment I can make is that it would be good if somehow the male/female plug unit could be made smaller, so that it could be used in a weather resistant outlet cover without having to leave the cover open.

ACF Greenhouses: Deep outlet covers like the ones available at https://www.acfgreenhouses.com... are large enough to fit the plugs and be closed.