The Alarm.com ADC-T25 Smart Thermostat is an advanced, user-friendly thermostat designed for modern comfort and smart energy management. With a clean square design and a bright OLED display, the T25 blends into any space while offering powerful control over your home’s heating and cooling.
The T25 works with almost any 24V HVAC system, including forced air, heat pump (O/B), dual fuel, and radiant systems. It supports up to 3 stages of heat and 2 stages of cooling. It also handles humidification, dehumidification, and ventilation systems using a flexible Z-terminal. Whether you're in a single-family home, apartment, or commercial space, this thermostat is built to adapt.
One of the T25’s standout features is its ease of installation. It auto-detects HVAC wiring and does not require a C-wire thanks to its four (4) AA batteries. The thermostat connects via Z-Wave and supports SmartStart, S2 Security, and Long Range, making it ideal for smart home systems using Alarm.com.
Through the Alarm.com platform, users can create energy-saving schedules, control settings remotely, and receive detailed HVAC health reports with Pro HVAC Monitoring. This helps catch small issues before they become big problems.
The T25 also supports the Alarm.com Temperature Sensor for room-by-room comfort and accuracy. Built to withstand common indoor conditions, it operates between 41°F to 95°F and is easy to control with simple button navigation.