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24 Volt Transformer C Wire Adapter for Most Thermostats with Doorbells, 26Ft Long Power Adapter, Compatible with Ring Honeywell Nest Hello Emerson Ecobee Wyze Eufy Video Sensi Smart WiFi Supply Cord… -
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16V 30VA AC Transformer is Compatible with Honeywell, Nest, Ecobee, Sensi Series thermostats, Ring doorbell and Nest Hello doorbell (1 Package) - Amazon.com
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