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Thermostat module 5 - 30

Velleman VM137: Thermostat Module

Velleman VM137

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The Velleman VM137 Thermostat Module 41° to 86° Fahrenheit (Velleman Module No Soldering Required)

Have a project that cannot get too hot? The Velleman VM137 Thermostat Module can keep it warm. When the temperature goes above a preset limit, the on board relay can turn on a fan. The VM137 can be adjusted from 41° to 86° Fahrenheit and 1.8° hysteresis a LED will indicate when the relay is active so you always know what’s going on. The relay features NO (Normally Open), NC (Normally Closed) and COM (Common) contacts. This module requires 12 Volts DC @ 100mA (sold separately).

Want the enjoyment of building this thermostat? Check out the MK138 Thermostat Minikit.


  • Power supply: 12VDC / 100mA (not included e.g. PS1208USA)
  • Dimensions: 2.1" x 2.4" x 1.1"
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Info Sheets

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product