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- house-of-gold (16887)- Feedback left by buyer.Past 6 monthsVerified purchaseQuick response and fast payment. Perfect! THANKS!!
Reviews (1)

Jan 12, 2025
I have been using Sensi ST-55s in three ...
I have been using Sensi ST-55s in three residential places, two states, and with two internet providers. I have had no problems with this item or its installation. It is a quality product, and I am now using it with two wire condensation boilers without a C-wire.