Features:

Selectable Temperature Control Gives Thermostat Flexibility to Control a Range of Heating Application
Comfort, Economy and Vacation Presets Enable Temperature Changes at the Touch of a Button
Pump Protection Activates Pump for One Minute Every 24 Hours to Prevent Seizure
Compact Design, One of the Smallest Thermostats on the Market
Precise LCD Shows Room Temperature in Increments of 0.1 Deg F
Low Battery Indicator Gives 60-Day Warning to Replace Batteries
Remote Input Enable Charge of Temperature Modes by Phone

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: TH135-01-B
Product Type: Non-Programmable Thermostat
Cover Type: Rectangular Vertical
Color: White
Voltage Rating: 24 VAC/VDC
Current Rating: 5 A (Resistive), 2 A (Inductive)
Switch Type: Relay
Temperature Rating: 32 to 122 Degrees F
Sensor Element: Thermistor
Terminal Designation: R, W
Battery Type: 2 AA Alkaline
Setting Temperature Rating: 40 to 85 Degrees F
Dimensions: 3.6" x 3.85" x 2.5"
Weight: 0.42 lb.