Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: YTHM1004R3001
Product Type: T10 Pro Smart Kit
Network Communications: Wi-Fi
Power Method: Hardwired
Mounting: UWP Mounting
Switch Type: Relay
Programmability: 7 Day, 5-1-1 Day, 5-2 Day, 1 Week, or Non-programmable. Can use sensors for priority scheduling.
Terminal Designations: EIM (R, Rh, Rc, C, L, O/B, W1, W2-AUX 1, W3-AUX 2, Y1, Y2, G, U1, U1, U2, U2, U3, U3, S1, S1, S2, S2, S3, S3, S4, S4)
Electrical Ratings: 20 to 30 VAC
Frequency: 50/60 Hz
Cool Current: 0.02 to 1.0 A Running
Heat Current: 0.02 to 1.0 A
Fan Current: 0.02 to 0.05 A
Stages: Up to 3 Heat/2 Cool Heat Pumps, Up to 2 Heat/2 Cool Conventional Systems
Operating Humidity Range: 5% to 90% RH, Non-Condensing
Supply Voltage: 20 to 30 VAC
Switch Positions (System): HEAT-OFF-COOL-AUTO-EM HEAT
Switch Positions (Fan): AUTO-ON-CIRC-FOLLOW SCHEDULE
Operating Temperature Range: 37 to 102 Degrees F
Ambient Temperature Range: 32 to 120 Degrees F
Setting Temperature Range: (Heat) 40 to 90 Degrees F, (Cool) 50 to 99 Degrees F
Dimensions: 10.2" x 6.4" x 6.6"
Weight: 2.81 lb.