The CH7600 is a professional-grade WiFi Smart Thermostat optimized for multi-stage heat pump systems (up to 3H/2C). Engineered for OEM/ODM clients by E-TOP Controls, it features advanced algorithms to maximize heating efficiency and minimize costly auxiliary heat activation. This TFT touch-screen controller provides a premium, white-label solution for HVAC distributors seeking reliable, high-end climate control technology. Item No.: CH7600 Power Requirement: A C-Wire is required for all systems (24V AC) System Versatility: Supports up to 3 Stages Heating and 2 Stages Cooling (3H/2C) Universal Compatibility: Works with Heat Only, Cool Only, and conventional HVAC systems Heat Pump Optimized: Compatible with Heat Pump systems (With or Without Auxiliary Heat) Smart Home Ready: Works with Amazon Alexa and Google Assistant Mobile Control: Remotely manage comfort via your smartphone from anywhere App Integration: Supported by free mobile apps for Android and iOS (Tuya Smart/Smart Life) Premium Interface: High-resolution TFT Capacitive Touchscreen Display