Salus ST320 S‑Series Digital Room Thermostat

The Salus ST320 is a digital room thermostat with a large backlit LCD and Touch Ring control for quick, precise adjustments. Designed for simplicity and reliability, it features volt‑free contacts, frost protection and a burner‑on indicator, making it a robust choice for central heating control in UK homes.

Key Features

• Touch Ring technology for easy temperature setting
• Large LCD with white backlight for clear visibility
• Stylish, slim casing to suit modern interiors
• Volt‑free contacts for flexible boiler interfacing
• Battery powered with replacement indicator
• Frost protection and burner‑on symbol

Technical Specifications

• Brand: Salus Controls
• Model/MPN: ST320
• EAN: 5060103691043
• Supply (Thermostat): 2 × AA alkaline batteries
• Contacts: Volt‑free (selectable 0–230 V applications)
• Switch Rating (max): 10 (3) A SPST
• Temperature Scale: 5 °C to 35 °C
• Display Resolution: 0.5 °C
• Operating Temperature: 0 °C to 50 °C
• Approx. Size (H × W × D): 111 × 111 × 30 mm
• Indicators: Battery low, burner‑on
• Mounting: Wall‑mounted
• Compliance: EMC / LVD

What’s Included

• ST320 digital room thermostat
• 2 × AA alkaline batteries
• Fixings and quick start information

Who It’s For

Homeowners and installers needing a dependable, non‑programmable digital thermostat with clear display, simple controls and volt‑free switching for a wide range of boiler connections.

Installer Notes

• Volt‑free contacts allow use in 0–230 V applications; verify boiler control input requirements
• Position away from draughts and heat sources for accurate sensing
• Use alkaline batteries only; do not mix old and new batteries