• SureStat TS116 Plug In Portable Thermostat Control - 4820940
  • SureStat TS116 Plug In Portable Thermostat Control - 4820940
Retail: $58.95
Price: $44.95
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 (15 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 14 Reviews:

Amazing how accurate this device is. Totally satisfied. Great product..

Solid thermostat

Nicely built. Super helpful customer service. Fast shipping.

Plug In Portable Thermostat Control - Heater

Received from ACF Greenhouses in a timely manner considering the circumstances. They are always friendly and responsive when we call with a question. The thermostat is easy to install and works as expected, turning the heater on and off at the set temperature. We previously purchased one for our greenhouse exhaust fan and it worked so well, we purchased this one for our heater. We are very satisfied with this purchase.

Works great!

I use this thermostat in my greenhouse with the Palma 120v Stainless Steel Waterproof Heater, also purchased here. Both are terrific. Safely packaged and fast shipping.

Portable thermostat.

The portable thermostat seems to be doing its job of controlling the heater and keeping the greenhouse warm.