Dimensions · Assembled unit: 3.3 in (8.3 cm) diameter · Height: 1.1 in (3.0 cm) · Display: 3.3 in (8.4 cm) diameter · Height: 1.0 in (2.7 cm) · Base: 2.9 in (7.6 cm) diameter · Height: 0.4 in (1.1 cm)

Assembled unit: 8.6 oz (243.7 g) · Display: 7.2 oz (205.4 g) · Base: 1.4 oz (38.3 g)

Stainless steel · White · Black · Copper

English (US, UK) · Dutch · French (Canada, France) · Italian · Spanish (Americas, Spain)

24-bit color LCD · 480 x 480 resolution, 229 ppi · 2.0 in (5.3 cm) diameter

Temperature · Humidity · Proximity · Occupancy · Ambient light · Magnetic (for thermostat ring position)

Built-in rechargeable lithium ion battery

802.11 a/b/g/n (2.4GHz/5GHz) Wi-Fi · 802.15.4 (2.4GHz) · Bluetooth Low Energy

Less than 1 kWh/month

Two-year limited warranty. For help, visit nest.com/support.

The Nest Learning Thermostat is compatible with many central heating systems, including: · Combi boilers · System and heat-only boilers · Domestic hot water tanks · Hydronic underfloor systems · Air-source and ground-source heat pumps (heating only) · Zoned systems (one Nest Thermostat per zone) · Heating systems with OpenTherm technology

Multi-zone homes: You can control up to 20 thermostats per home. · Nest in three homes: You can control Nest thermostats in three locations from one Nest account.

3 LEDs – status, manual heating, manual hot water · Nest button used for manual heating mode or to reset.

Size: 11 x 11 x 2.8 cm · Weight: 198 g

802.15.4 @ 2.4 GHz

2 relays supporting 3 (1) A load @ 230 V AC, on both satisfied and call-for heat connectors · Input power 100-240 V AC, 50/60 Hz · Output power provides 12 V DC to thermostat

On/Off (heating and hot water) · Works with OpenTherm (heating and hot water)

Less than 1 kWh/month