Retail: $64.95
Price: $55.95
Availability: In Stock - Usually ships in 1 to 2 days.
This thermostat comes prewired with a 5' remote sensor and a 6' cord with plug-in. 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. This model is only available setup for heating but can be rewired for cooling (see instructions). *Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats.

  • Widest temperature range: 0° to 120° F
  • 5' waterproof remote sensor
  • Wired for heating (can be converted to cooling)
  • Fixed 3° F temperature differential
  • Plug-N-Play, no wiring needed
  • Can handle 15 full load amps @120V
  • 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 1 Reviews:
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Mechanical thermostats are more reliable than new solid state

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After looking at many solid state thermostats on Amazon and finding frequest failures with all of them, I concluded the older mechanical to be more reliable.
Of course the remote sensor is appropriate if needed.
My local greenhouse company (Oregon) provided a similar mechanical thermostat with my greenhouse.