The CH7500 is a professional-grade Universal Wireless Thermostat engineered for the rigorous demands of the North American commercial and residential markets. Optimized for 3H/2C Multi-stage Heat Pump and conventional systems, it features a unique Dual-Wireless architecture: 2.4GHz WiFi for seamless App/Cloud management and RF 868MHz for rock-solid, wire-free communication between the console and the HVAC unit. Whether you are integrating into a BMS via BACnet or performing a rapid smart retrofit, the CH7500 provides the reliability and flexibility that modern HVAC professionals require. Item No.: CH7500 Premium LCD Display: Large, high-contrast segmented LCD screen for clear visibility and tactile reliability. Wireless Versatility: Supports up to 3 Stages Heating and 2 Stages Cooling (3H/2C) with advanced RF technology. System Pairing: One thermostat can wirelessly pair and control up to 8 base modules simultaneously. Universal Compatibility: Seamlessly works with Heat Pump (with/without Aux), Gas, Oil, and Electric systems. Smart Home Ready: Full voice control support with Amazon Alexa and Google Assistant. Flexible Power Supply: The display unit supports both 2 x AA batteries and USB 5V power options. App Integration: Remote management via Tuya Smart or Smart Life App (iOS/Android).