ETO2 Temperature Control of Ice and Snow Melting

Item number: 1041

EAN: 5703502660233

309,00 €

including 19% VAT. , no shipping costs

Available now!

Shipping time: 2 - 3 days **

Thermostat for open spaces

ETO2 is an electronic controller for fully automatic, economical ice and snow melting in outdoor areas and gutters. Ice forms at a certain constellation of low temperature and humidity. ETO2 detects both temperature and humidity, and the snow melting system is usually activated only when ice or snow is present. ETO2 is suitable for controlling electric heating cables or water-based heating pipes.

The moisture sensor is to be installed in the ground surface or gutter. As soon as moisture is detected at a critical temperature level, the ETO2 controller activates the snow melting system. As soon as the sensor is dry, the thermostat switches to reheating mode, during which the system continues heating for a predefined period.

The snow melting system is only activated when the outdoor temperature drops below the setpoint and snow or ice is registered by the sensors. Energy consumption therefore only occurs when absolutely necessary.

For gutters - ETO2-4550, ETOR-55 and ETF-744/99.
The ETOR sensor is designed for installation in gutters, downpipes, etc. ETOR sensors detect moisture, ETF sensors measure temperature.
For open spaces - ETO2-4550, ETOG-55 and ETOG-56/ETOK-1
The ETOG sensor is designed to be embedded in the ground surface in outdoor areas. ETOG sensors detect soil temperature and humidity. The ETF-744/99 sensor is used to detect sudden temperature Drops.


  • Electronic on-off control up to 11 kW
  • Two-zone control, individually controlled
  • Economical control - minimised energy consumption
  • Adjustable humidity sensitivity
  • Sensitivity to both temperature and humidity
  • Display and rotary knob for easy configuration
  • Controls water-based or electric ice and snow melting systems
  • Language Options

Technical data (ETO2-4550 thermostat):
Mains voltage: 120-240 V ±10 %, 50-60 Hz
Temperature range (control): -20 to +50 °C
Built-in timer for manual snow melting/reheating: 0-18 hours
Output relays: 3 potential-free relays 16 A
2-zone application: Via 2 potential-free output relays 16 A
Water-based system: Control of 3- or 4-way valve, main pump, auxiliary pump
Display Graphic, with backlight
Temperature range (ambient): 0/+40 °C
Temperature range (storage): -50/+70 °C
Housing/cover: IP20
Weight: 495 g
Dimensions without cover (H/W/D): 90x156x45 mm
Dimensions incl. cover (H/W/D): 170x162x45 mm
LED display: ON/green Thermostat under mains voltage; fault/red Error message

At least one of the following sensors is required to operate the ETO2 control unit:

ETOG-55 floor sensor
Detection: humidity and temperature
Installation: open space
Protection class: IP68
Temperature range (ambient): -50 to +70 °C
Dimensions (H/Ø): 32x60 mm

ETOG-56/ETOK-1 built-in floor sensor
Detection: humidity and temperature
Installation: outdoor surface
Protection class: IP68
Temperature range (ambient): -50 to +70 °C
Dimensions, probe (H/Ø): 32x60 mm
Dimensions, tube (H/Ø): 78x63.5 mm

ETOR-55 Gutter sensor
Detection: Moisture
Installation: Gutter or downpipe
Protection class: IP68
Temperature range (ambient): -50 to +70 °C
Dimensions (H/W/D): 105x30x13 mm

ETF-744/99 Outdoor temperature sensor
Detection: temperature
Installation: Wall surface
Protection class: IP54
Temperature range (ambient): -50 to +70 °C
Dimensions (H/W/D): 86x45x35 mm

Scope of delivery:
ETO2-4550 thermostat incl. cover for wall mounting
Operating instructions
Delivery without sensors

Average product review

Write your first review and help others with their purchase decision: