Honeywell Home · Standalone
VisionPRO 8000 TH8320R1003 RedLINK Thermostat
Touchscreen thermostat with seven-day scheduling and RedLINK accessory support.
Will this work with my system?
Match your equipment to these requirements before ordering.
Works with
- Staging: Heat pump (standalone): 3 heat / 2 cool; Conventional (standalone): 2 heat / 2 cool
System requirements
- Power: Battery or 24 Vac hardwire
- Connection: RedLINK
Check before you buy
- Match the full TH8320R1003 model number and hardware revision to the manufacturer's equipment manual and accessory list.
- Compare the equipment terminals, control voltage and required operating sequence with the model-specific installation diagrams.
Installation & configuration details
- THM5421R1021 is optional when choosing an equipment-interface configuration; it is not required for direct equipment wiring.
- Accessory functions and equipment stages depend on the exact thermostat and installer configuration.
Manufacturer documentation (2)
Use these documents to compare your exact model and configuration.
Overview
Part of the Honeywell Home RedLINK system. See the system overview for component roles and selection requirements.
The TH8320R1003 can connect directly to HVAC equipment or communicate through a compatible equipment interface module. Its standalone staging is listed below; an EIM changes the system’s staging and accessory capabilities. Remote Internet access requires a separate RedLINK Internet Gateway and Internet service. Check the exact model and installation configuration before selecting humidity-control accessories.
Selection and installation
Use the linked manufacturer documentation for the exact equipment configuration, wiring and commissioning requirements. Accessories and controls must be matched by model and electrical characteristics.
Product details
- Manufacturer
- Resideo
- SKU
- 361722
- Model / MPN
- TH8320R1003
- Condition
- New
- Lifecycle
- Current
Specifications
- Stage modes
- Heat pump (standalone): 3 heat / 2 cool; Conventional (standalone): 2 heat / 2 cool
- Power sources
- Battery or 24 Vac hardwire
- Scheduling modes
- 7-day or non-programmable
- Communication protocols
- RedLINK
- Setpoint range
- Heat 40–90 °F; cool 50–99 °F
- Keypad lockout
- Supported; configured through thermostat security settings
- Hold options
- Temporary and permanent hold for residential schedules
- Dual transformer support
- Supported for documented conventional wiring; remove factory jumper
Documents & downloads
Optional components

Honeywell Home
THM5421R1021 Equipment Interface Module
Model THM5421R1021 SKU 365481
RedLINK equipment interface for compatible Prestige IAQ and VisionPRO thermostats.
- Supply voltage
- 18–30 Vac
- Heating and cooling stages
- Heat pump: Up to 4 heat / 2 cool; Conventional: Up to 3 heat / 2 cool
- Communication protocols
- RedLINK
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Honeywell Home
C7189R1004 Wireless Indoor Sensor
Model C7189R1004 SKU 365484
Wireless temperature and humidity sensor for compatible RedLINK 2.0 thermostats.
- Measured variables
- Indoor temperature and relative humidity
- Communication protocols
- RedLINK 2.0
- Power sources
- Battery
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Honeywell Home
C7089R1013 Wireless Outdoor Sensor
Model C7089R1013 SKU 365486
Battery-powered outdoor temperature and humidity sensor for compatible RedLINK systems.
- Communication protocols
- RedLINK
- Mounting
- Outdoor bracket
- Power sources
- Battery
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Honeywell Home
REM5000R1001 Portable Comfort Control
Model REM5000R1001 SKU 365485
Portable remote control for compatible RedLINK thermostats and equipment interfaces.
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Honeywell Home
THM6000R7001 RedLINK Internet Gateway
Model THM6000R7001 SKU 365490
Ethernet-connected gateway for remote access to compatible RedLINK thermostat systems.
- Supply voltage
- Adapter input: 100–240 Vac, 50/60 Hz; Adapter output: 4.80–5.20 Vdc; maximum 1000 mA
- Communication protocols
- RedLINK to thermostat system; Ethernet to router
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