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ET 72 Installation Guide

2024-11-01
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ET-72 Smart Thermostat was developed according to the mainstream thermostat design in the United States, and we already got the UL Report.In the aspect of security, we did more than other brands. First, we use top-class hardware such as the HongfaTM relay, and then it combines the GFCI function module. Besides, we also developed a secure back cover to prevent short circuits. 

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