1.CE approval 2.Large LCD 3.Key-lock function 4.De-frost protection 5.Manual, time program and temporary mode

  TX-831 series are available for boiler, electric heaters, manifold and underfloor heating system with 7-day, 6-period time program control.Models are with NTC sensor to detect ambient and floor temperature and do the control compared with the setting one.Manual, time program and temporary mode can be switch any time by press the relevant keys.De-frost protection function will be active when ambient temperature below 5°C. Prevent water pipe from freezing and burning.Features:1. Large digital LCD display with blue backlight2. De-frost protection3. Manual, time program and temporary mode4. Double sensor to control and limit the temp5. 7-day, 6-period time program6. Key-lock function7. On/off output for valve8. Mounted onto standard 86*86mm junction box