Robertshaw Programmable Multi-Stage 2H/1C 7 Day Wall Thermostat RS9210

Robertshaw part number RS9210.

Large terminal blocks for easy installation
Universal sub-base
Quick-access menu button
Contractor/technician setup menu
Easy-to-understand programming menus
Intuitive wake, leave, return, sleep programming icons
24V AC Powered OR Battery Operation (Included)
6 Year Limited Warranty
Factory pre-set energy efficiency program
Large, easy-to-read 4.6-square-inch blue backlit display
Easy-access front-load battery compartment
Adjustable temperature differential (swing) for energy optimization and maximum system life
Dual fuel compatible
Adjustable room temperature calibration
Adjustable setpoint limits
Five-minute selectable on/off compressor delay protection for short-cycling prevention
Separate O and B terminals

Dimensions: (W x H x D) 4.7 x 3.8 x 1 in. (119.6 x 97.6 x 26 mm)
Mounting: Wall or junction box
System compatibility: Two-stage heating and one-stage cooling
System fuel source: Gas, electric or oil
Heat pump compatibility: Systems with auxiliary or emergency heat
Millivolt application compatibility: Yes
Temperature range: 41 to 95 degrees F (5 to 35 C)
Control temperature range 44 to 90 degrees F (7 to 32 C)
Display accuracy +/- 1 degree C (at 20 C) / +/- 1 degree F (at 68 F)
Power sources 24V AC (18 to 30V AC), 50/60 Hz for hardwire (common wire required) or
2 AAA 1.5V alkaline batteries (included)
Terminals R, C, Y, W2, W/E, G, O, B