Photo 1 of 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/ 24V Adapter (1 Pack)

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Photo 1 of 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/ 24V Adapter (1 Pack)Photo 2 of 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/ 24V Adapter (1 Pack)Photo 3 of 24 Volt Transformer, 40 VA AC Transformer Plug in with PTC Fuse Compatible with Ring Doorbell and Thermostat, Compatible with Nest, Ecobee, Sensi/Honeywell/ 24V Adapter (1 Pack)