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EOS Econ D4

Control unit, dry Finnish sauna

Sauna control unit for demanding, private and commercial users.

Electronic sauna control unit for the dry (Finnish) sauna with new innovative functions. Particularly suitable for modern commercial sauna cabins.

With 24 h pre-set timer in real time. Heating time limitation 6 h, 12 h or unlimited. Control range between 30 °C and 115 °C. Safety temperature limiter 139 °C. Switching power 9 kW, may be extended for connection of more powerful heaters. Inc. temperature sensor with 2 m cable.

Additionally with:

  • Dimmable cabin light, 10-steps. Automatic detection of inductive and capacitive loads on light output.
  • Output for ventilation fan, adjustable (3 speeds).
  • Holiday home mode (restricted access - only basic functions)
  • 4 user profiles.


Optional accessories:

  • Remote Start Module: with this module you can start your sauna from a remote location up to 100 m. An integrated LED lamp indicates the current operation status.
  • Bench Sensor: improves temperature control, recommended especially for large saunas or complex layouts.

Item no.



  • Illuminated extra-large alphanumeric multiline LCD display, shows all parameters at a glance. Menu navigation in 12 languages.
  • Variable heating time, 24 h pre-set timer (in real time)
  • Modern, slim housing design.
  • Additionally with:
    • Remote switching possible (optional remote start button).
    • Dimmable cabin light output, 10-step adjustment.
    • Automatic detection of inductive and capacitive loads on light output (manual setting possible).
    • Output for fan, adjustable speed (3 steps).
    • Innovative „Holiday home mode“ - restricts the access to basic functions only (on/off, temperature, light).
    • Switching capacity 9 kW, my be extended with an LSG device.

Electrical connection

400 V 3N ~ 50 Hz

Switching capacity

9,0 kW resistive load

Power extension via LSG unit

LSG 10 / LSG 18 / LSG 36

Temperature control range

30 - 115 °C

Start time pre-selection

up to 24 hrs

Cabin light/fan outputs

max. 100 W

Heating time limitation

6 h, 12 h, unlimited

Dimensions H/W/D in cm

22 / 25 / 6,7

Ambient temperature in operation

-10 to +40 °C

Weight without packaging

1,0 kg