One Thermostat, Endless Possibilities
The Smart Temp SMT-455 Voyager is a powerful, next generation programmable thermostat designed to control almost any commercial or residential HVAC system. Built on more than 25 years of Smart Temp engineering experience, the Voyager combines advanced control, flexible configuration, and intuitive operation in a single modern controller.
Designed for Maximum Flexibility
With 5 onboard relays, 3 programmable universal outputs, and 3 universal inputs, the SMT-455 can be configured to suit a wide range of HVAC systems without the need for multiple thermostat models.
The Voyager supports:
- 5-stage heat pumps with multi-speed fan control
- Up to 4 stages of heating and cooling
- Fan coil units
- Hydronic heating and cooling systems
- Open/Close valve control
- 0-10V modulating valve control
- Most popular inverter air conditioners using an optional protocol adapter
High-Level Communication
The SMT-455 communicates directly with Temperzone â„¢ UC7 or UC8 via RS-485 AB ModBus communication, providing high-level control and enhanced system functionality.
For even greater compatibility, an optional Multilink protocol converter enables communication with leading inverter brands including:
- Daikin â„¢
- Mitsubishi Electric â„¢
- Fujitsu â„¢
- Plus other supported inverter systems
Perfect for Commercial and Residential Applications
For commercial buildings, it includes features such as:
- Commercial Start/ Stop time scheduling
- After-hours run timer
- Outside air economy cycle control
- Configuration to suit Australian Standard AS 1668.2 and Building Code requirements
For residential homes, the Voyager provides:
- Simple, intuitive touchscreen operation
- Residential setback mode
- Easy-to-use scheduling
- Control Your Comfort from Anywhere
Built-in Tuya Wi-Fi allows you to monitor and control your HVAC system from anywhere using your smartphone or tablet.
Why Choose the Smart Temp Voyager?
- Suitable for commercial and residential HVAC systems
- Highly flexible I/O for virtually any application
- Optional integration with major inverter brands
- Built-in Wi-Fi with Tuya Smart Life app
- Touchscreen interface with configurable user modes
- Advanced scheduling and energy-saving features
- Designed and supported by Smart Temp Australia
The Smart Temp SMT-455 Voyager delivers the flexibility of a building management controller with the simplicity of a modern thermostat, making it the ideal solution for today’s HVAC installations.



