Digital Temperature Controller Board w/Waterproof Sensor…. $4.99

RioRand 12V DC Digital Cooling/Heating Thermostat Temp Control -50-110 °c Temperature Controller 10A Relay with Waterproof Sensor Probe

RioRand 12V DC Digital Cooling/Heating Thermostat Temp Control -50-110 °c Temperature Controller 10A Relay with Waterproof Sensor Probe

Note from HBF: These controllers require some work to get up and going in your project.  They are unwired and require additional materials to integrate into your project.  Make sure this has appropriate specifications for your intended application.  If you’re looking for a pre-wired controller, consider – Inkbird Dual Stage Temp Controller [Hands on Review]

3/31/21 3 PM Central: This is selling for just $4.99. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices and availability can change quickly.  Check product page for current info – More About Prices

RioRand 12V DC Digital Cooling/Heating Thermostat Temp Control -50-110 °c Temperature Controller 10A Relay with Waterproof Sensor Probe – note that multiple variations of this product may be available, as such a different version may appear at this link


Also Consider: Inkbird Dual Stage Temp Controller [Hands on Review] – Inkbird Deals

More: Recent Amazon Finds

Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.

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