Search query: wireless thermostat without c wire

Product: 24 Volt Transformer, C Wire Adapter Thermostats, Compatible with Ecobee, Nest and Honeywell Smart WiFi Thermostat, Ring Nest Hello Skybell August Doorbell (White)
Brand: Hotop
Color: White
Relevance: Substitute
Specification:
Input voltage: 120 V/AC, 60 Hz;
Output voltage: 24 V, 0.3 A/ AC
Length: 23 feet/ 7 m
Compatible with: devices that require 24 volt current for operation, such as smart thermostats of Nest, Honeywell, Ecobee, Hive, Emerson Sensi, etc.

Package includes:
1 x 24 Volt adapter

Please note:
This is a compatible spare part and the manufacturers' names has been mentioned above for reference purposes only.
24V C WIRE POWER ADAPTER: plugs into your standard 110 v/120 v outlet and converts to 24 volt AC current
24 VOLT TRANSFORMER FOR THERMOSTAT AND DOORBELL: powers up smart thermostats for (Nest, Ecobee, Honeywell, Emerson Sensi, Hive, etc.) and doorbells (Ring, Nest Hello, Skybell, August) that require 24 volt power for operation
UL certified: UL certification passed, stable and durable operation 24V transformer
EASY INSTALLATION: 2 pin non-polarity wires support easy and quick install, 16.5 ft cable is long enough to plug it into an electrical outlet inside or outside your house
PACKING LIST: 1 x C wire adapter, 1 bag (50 pieces) of cable clips; Note: Please add a 50W Watt 25 Ohm Resistor if you use this transformer to power a doorbell. The brand mentioned above is just for demonstrating compatibility

Product: Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist
Brand: Honeywell Home
Color: White
Relevance: Exact
ENERGY STAR CERTIFIED. See your energy use in the Monthly Energy Report, and help save even more with a schedule that adapts to your lifestyle, and by connecting with your utility efficiency program
AUTO HOME AND AWAY MODE. Adjust your thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with geofencing
MULTI-ROOM FOCUS. Add Smart Room Sensors to focus the temperature on multiple rooms for comfort where it matters to you. (Sensors sold separately). Wire Configuration - 4-Wire. Supports Wi-Fi 802.11 B/G/N 2.4 and 5 GHz
COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V)
SMARTER, SIMPLER SETUP. Everything you need comes in the box, including a power adapter so that the T9 works in most homes. The T9 intuitively identifies your home’s heating and cooling type, making it easy to do it yourself