Aqara - C-Wire Adapter for W200 Smartq Thermostat - White

Aqara Thermostat W200, the first thermostat to support Apple Adaptive Temperature and Clean Energy Guidance, delivers effortless comfort and smarter energy savings. Your iPhone learns your routine and adjusts automatically—no schedules required. More than a thermostat, it works as a Zigbee and Thread hub with Border Router capabilities, expanding your Matter network and enabling local control across Apple, Google, Alexa, SmartThings, and Home Assistant. Built-in mmWave presence detection, dual-band Wi-Fi, security alert playback, and seamless doorbell streaming and lock control bring powerful automation together—subscription-free and designed for a future-proof smart home.

The C-Wire provides a continuous flow of power to operate more advanced 24-Volt thermostats and is most often needed when upgrading to Wi-Fi and wireless thermostats. The C-Wire Power Adapter converts existing thermostat wires to common wires (C-Wires) to help make Honeywell Home Smart Thermostats compatible with homes that may be missing this "common" wire. Features easy push terminals and an adhesive mount to attach the adapter to the outside of your furnace, while a closed cover conceals internal components — making installation quick and easy.

Amazon Smart Thermostat is ENERGY STAR certified. Easily switch your traditional thermostat and help reduce energy usage. For on-the-go comfort, let Alexa set the temperature, or set it yourself from anywhere with the Alexa app. Amazon Smart Thermostat is compatible with most 24V HVAC systems (like conventional force air, heat pump, radiant boilers, etc). It does not work with 110-240V HVAC systems (like electric baseboard heat). Smart Thermostats require a C-wire (most homes have one) or a C-wire adapter kit (sold separately). Guided installation instructions are included in the Alexa app, and will walk you through checking for a C-wire or options for powering your thermostat.