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ITC-308 Temperature Controller

9.2/10
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The Inkbird ITC-308 is a temperature controller that makes it easy to maintain your indoor grow — especially newer growers or anyone running compact setups. Equipped with dual relays, it can control both heating and cooling devices at once, meaning it’s perfect for maintaining consistent grow tent temps day and night. Just plug in your heater and fan, set your target temperature range, and this plug-and-play system does the rest. It features a digital display, temperature control ranges of -50° to 120°C (-58°F to 248°F), and high/low temperature alarms to ensure temps stay steady. It’s perfect for managing seedling mats, inline fans, or grow room heaters with minimal setup. Reliable, accurate, and budget-friendly, it’s one of the most popular controllers on the market. If you want to step things up, consider the ICC-500T that delivers timed automation. You can also pair it with the IHC-200 for simultaneously managing humidity.

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