Digital controllers

Digital controllers have unique features allowing you to reduce energy waste. Equipped with temperature and moisture sensors, control modes, and special functions, they ensure accurate temperature settings, reducing energy consumption costs by up to 40 percent.

The DEVIreg™ 850 / ECtemp™ 850 is fully automatic, with temperature and moisture sensors for when ice and snow melts on grounds, such as pavements, roads, and ramps as well as for roof, gutter, gutter valleys and down pipes.

DEVIreg™ 850 / ECtemp 850

The DEVIreg™ 850 / ECtemp 850 version IV is an advanced thermostat with an LED display used for outdoor ground or roof applications. The sensors provide information about both moisture level and temperature, resulting in optimal control of the heating system.
The controller can handle up to 2 independent areas.

In the dual / combination systems it is possible to prioritize between the zones, e.g. if only a limited power output is available.

Applications:
• Roofs, gutters, downpipes, drain lines
• Ground, walkways, outdoor steps
• Road/concrete asphalt
• Mastic asphalt

DEVIreg™ Multi

DEVIreg™ Multi is 7 channel electronic programmable controller to be installed on DIN rail. Every channel can be individually set up with three control modes—with temperature sensor, time proportional power regulation without sensor, and manually on/off with time limitation. Сhannel inputs can be selected via software between 8 types of temperature sensors including NTC 15 kOhm at 25°C. Modbus RS485 opto-insulated serial interface gives the possibility for BMS control.

DEVIreg™ Multi

Features and benefits using outdoor digital controllers

Single, combination or dual zones

Up to 4 sensors

Moisture and temperature sensing

Alarm function

Efficient control snow removal

Up to 40% Energy saving

Automatic ”Around the Clock” snow clearing service

Related products

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BDU Z-style transmissions

Our BDU Z-style transmission features a variable displacement pump and a fixed displacement motor. The pump features a cradle swashplate with a direct proportional displacement control. The motor uses a fixed swashplate.
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LDU U-style transmissions

The LDU has a compact design and features a U-style layout in one housing. Best-in-class efficiency ensures high performance and low fuel consumption, and a low noise design improves operator comfort.
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Self-leveling valves

Experience true operational simplicity with self-leveling valves from Danfoss. These line-mounted, flow-dividing valves automatically adjust a machine’s bucket or attachment position in response to movement of the boom cylinder. The result is a constant bucket altitude, no matter how much repositioning your task requires.
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Caliper disc brakes

In addition to offering Airflex caliper brakes, Danfoss and Coremo Ocmea have partnered to become a leader in safe, reliable solutions for industrial, marine, oil and gas, energy and entertainment sector applications.
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Servo Valves

Precise and reliable, Vickers by Danfoss servo valves provide closed-loop control with exact positional accuracy, repeatable velocity profiles, and predictable force or torque regulation, outperforming the competition in even the most demanding applications.

Accessories

Relevant accessories

Find relevant accessories by following this link

Accessories in Product Store

Videos

Snow melting and De-Icing solutions from Danfoss

Durably-designed Danfoss snow melting and de-icing products provide a permanent solution for safety in winter weather.

Electric heating videos on YouTube

You can see all our videos about Electric Heating on a dedicated playlist on YouTube. Follow the link below.

Go to the Electric Heating playlist on YouTube

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type
Application guide	Danfoss Ground application. Ice & Snow Melting Application manual	English	Multiple	11 Nov, 2020	7.5 MB	.pdf
Catalog	Danfoss Product catalogue	English	Multiple		20.8 MB	.pdf
Application guide	Danfoss Roof application. Frost protection Application manual	English	Multiple	06 Sep, 2022	14.4 MB	.pdf
Application guide	DEVI Ground Application manual	Lithuanian	Multiple	29 Nov, 2019	8.2 MB	.pdf
Application guide	DEVI Ground Application manual	English	Multiple	25 Oct, 2016	10.2 MB	.pdf
Application guide	DEVI Ground Application manual	Danish	Denmark	03 Jun, 2021	2.7 MB	.pdf
Application guide	DEVI Ground Application manual	Swedish	Sweden	22 Jun, 2022	8.3 MB	.pdf
Application guide	DEVI Ground Application manual	Russian	Kazakhstan	14 Sep, 2020	8.3 MB	.pdf
Catalog	DEVI Product Catalogue	Finnish	Finland	24 Jun, 2025	13.8 MB	.pdf
Catalog	DEVI Product Catalogue	Lithuanian	Lithuania	02 Oct, 2025	28.1 MB	.pdf
Catalog	DEVI Product Catalogue	Italian	Italy	28 Jul, 2025	29.2 MB	.pdf
Catalog	DEVI Product Catalogue	Greek (modern)	Greece	20 Oct, 2025	29.5 MB	.pdf
Catalog	DEVI Product Catalogue	Dutch, Flemish	Netherlands	14 Aug, 2025	28.5 MB	.pdf
Catalog	DEVI Product Catalogue	Spanish, Castilian	Spain	04 Aug, 2025	29.2 MB	.pdf
Catalog	DEVI Product Catalogue	Swedish	Sweden	23 Oct, 2025	29.1 MB	.pdf
Catalog	DEVI Product Catalogue	Finnish	Finland	25 Jan, 2023	30.6 MB	.pdf
Catalog	DEVI Product Catalogue	Portuguese	Multiple	01 Sep, 2025	29.1 MB	.pdf
Catalog	DEVI Product Catalogue	Czech	Czech Republic	21 Oct, 2025	29.2 MB	.pdf
Catalog	DEVI Product Catalogue	Finnish	Finland	03 Mar, 2022	10.4 MB	.pdf
Catalog	DEVI Product Catalogue	English	Multiple	09 Apr, 2025	29.5 MB	.pdf
Catalog	DEVI Product Catalogue	German	Austria	01 Oct, 2025	14.3 MB	.pdf
Catalog	DEVI Product Catalogue	Polish	Poland	25 Sep, 2025	28.1 MB	.pdf
Catalog	DEVI Product Catalogue	Ukrainian	Ukraine	16 Jan, 2025	13.0 MB	.pdf
Catalog	DEVI Product Catalogue	Norwegian Bokmål	Norway	06 Aug, 2025	26.4 MB	.pdf
Application guide	DEVI Roofs Application manual	Swedish	Sweden	26 Feb, 2021	15.0 MB	.pdf
Application guide	DEVI Roofs Application manual	Danish	Denmark	03 Jun, 2021	3.5 MB	.pdf
Application guide	DEVI Roofs Application manual	Russian	Kazakhstan	15 Sep, 2020	14.8 MB	.pdf
Application guide	DEVI Roofs Application manual	English	Multiple	06 Sep, 2022	14.9 MB	.pdf
Application guide	DEVI Roofs Application manual	Ukrainian	Ukraine	15 Sep, 2020	14.9 MB	.pdf
Data sheet	DEVIreg 850	German	Multiple	19 Mar, 2021	545.9 KB	.pdf
Data sheet	DEVIreg™ 850	English	Multiple	27 Mar, 2025	613.3 KB	.pdf
Data sheet	DEVIreg™ 850	Czech	Czech Republic	30 Oct, 2015	200.4 KB	.pdf
Data sheet	DEVIreg™ 850	Danish	Denmark	19 Oct, 2022	589.3 KB	.pdf
Data sheet	DEVIreg™ 850	Romanian, Moldavian, Moldovan	Romania	16 Feb, 2016	200.1 KB	.pdf
Data sheet	DEVIreg™ 850	Ukrainian	Ukraine	24 Dec, 2021	98.6 KB	.pdf
Data sheet	DEVIreg™ 850 IV	French	France	03 Oct, 2024	611.0 KB	.pdf
Data sheet	DEVIreg™ Multi	Ukrainian	Ukraine	24 Dec, 2021	70.5 KB	.pdf
Data sheet	DEVIreg™ Multi - Data sheet	Finnish	Finland	02 Sep, 2020	518.1 KB	.pdf
Data sheet	DEVIreg™ Multi Data sheet	Norwegian Bokmål	Norway	20 Feb, 2025	215.5 KB	.pdf
Data sheet	DEVIreg™ Multi Data sheet	English	Multiple	27 Mar, 2025	316.7 KB	.pdf
Data sheet	DEVIreg™ Multi Data sheet	French	France	03 Oct, 2024	314.1 KB	.pdf
Data sheet	ECtemp 850	English	Multiple	17 Jul, 2023	798.2 KB	.pdf
Data sheet	ECtemp 850 (EFIT 850)	German	Austria	09 Jul, 2019	4.0 MB	.pdf
Data sheet	ECtemp 850 IV	French	France	04 Oct, 2024	796.0 KB	.pdf
Application guide	Наземне застосування. Танення льоду та снігу	Ukrainian	Ukraine	14 Sep, 2020	8.3 MB	.pdf

Tools and apps

EH Plugin for AutoCAD

The Plugin supports your engineering and design journey by making your work faster due to simple functionalities in calculating all lengths, dimensions and product data of cables and mats. It covers all applications within Electric Heating projects: Electric floor heating, Ice & Snow melting systems, Pipe tracing, Cold stores, Sport fields, Vineyards etc.
By utilizing Plugin, you will reduce design time for the project, provide all necessary information for installers in HTML/PDF format: BoM, resistance value check list, warranty list format. It means all project information can be consolidated in one file.

Plugin can be used with AutoCAD 2021.

Warranty

At Danfoss, it is important for us to deliver high-quality products with long-lasting effects. Should you, against all expectations, experience a problem with your product, Danfoss offers a warranty for electric heating products valid from the date of purchase that was no later than 2 years from production date.

Depending on the product, the product guarantee is valid for two years, five years, or twenty years.

Product warranty covers costs for:

product replacement with a new comparable product or repair of the product
transportation costs

Warranty terms

Case studies

Coming soon...

Related applications

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Agriculture

Farmers need agricultural machines that deliver the same high productivity every season. Hydraulic solutions from Danfoss ensure world-class performance from each machine - and a comfortable, stress-free working environment for their operators.
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Frost and snow protection

Danfoss systems are used in all frost protection applications in parking lots, garages, stairs, pavements and other ground-level surfaces, which can be secured against the negative effects of winter. Danfoss frost protection systems include all necessary products such as cables or heating mats, specialized controllers and mounting accessories.
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Frost and snow protection

During winter time it can be hazardous to access commercial or public buildings. Snow covered parking lots, garage ramps, stairs and pavements need to be cleaned to allow visitors safe access. Danfoss offers highly effective frost and snow protection systems including all necessary products such as electric heating cables or mats, controllers, sensors and mounting accessories.