Ecobee Wi-Fi Thermostat, EMS Si Model, 24 VAC, 7 day Program Programmability, Auto/Manual Changeover, 2 Heat/2 Cool Conventional Systems, 3 Heat/2 Cool Heat Pump -Stage, 2.5 in Full Color LCD Display, Temperature Settings: 45 - 92 deg F, 32 - 130 deg F Operating, 5 - 95% RH Non-Condensing Humidity, +/-1 deg F Accuracy, Horizontal Mounting, CR2032 - 3 V Lithium Coin Cell Battery, White, 5-1/2 in W x 3-1/4 in H x 1 in D

• Automation - adjust the heat and or cool set temperatures, shut down the compressor, shut down AC, disable auxiliary heart, turn fan on, send alert, shutdown HVAC
• Internet connectivity and security - 802.11 b/g/n wireless routers, WEP 64, WEP 128, WPA and WPA 2 encryption methods, DHCP (dynamic) or static IP addressing, 168 bit SSL encryption
• Celsius or Fahrenheit display
• 365 days scheduling
• Occupied and unoccupied terminology
• Automatic daylight saving time (DST) adjustment
• Adjustable auto change over dead-band
• Outdoor temperature detection
• Reminders and alerts on screen or via email
• 40 - 100 deg F display
• 20 - 90% RH display, +/- 5% RH sensitivity humidity
• 18 AWG at 128 ft, 20 AWG at 80 ft and 22 AWG at 50 ft wire
• 320 x 240 pixel resolution display
• Easy-to-access battery compartment, decorative trim plate included and 94V0 (flame-resistant) plastic