Product description

Temperature control such
as you expect

Minimalist design, operational reliability and safety - these are the main advantages of the new Euroster 4020TX temperature controller. The large, backlit screen shows two temperatures: set and current. The controller effectively stabilizes the room temperature at the desired level, ensuring user comfort and real energy savings. A number of useful additional functions increase the attractiveness and versatility of the controller application both in households and in public utility rooms. The regulator has a function of limiting temperature regulation by unauthorized persons.

Intelligent PWN function

Perfect comfort through intelligent switching based on the temperature increase algorithm. Guarantee of stable temperature without hysteresis differences.

Well thought-out software

Simple, intuitive setting of basic parameters, extended with an advanced menu for specialists.

Universal operating modes

A switch placed in an accessible place enables switching the operating mode to heating, cooling or switching off the regulator after the heating period.



  • does not require wiring between the regulator and the controlled device,
  • an easy-to-use temperature controller that allows easy temperature control in residential and utility rooms,
  • two-way communication ensures high operational reliability and resistance to interference,
  • possibility of cooperation with up to 6 Euroster RX receivers,
  • function of temporary reduction of the set temperature,
  • clear, backlit LCD display,
  • controller lock with any 3-digit code,
  • the ability to work in one of the three operating modes:
  • room temperature control mode
  • floor temperature regulation mode
  • temperature control mode with floor temperature limitation
  • simultaneous display of the current and set temperature on the screen,
  • hysteresis set in the range from 0.2 ° C to 10 ° C or PWM regulation,
  • temperature setting and reading with an accuracy of 0.1 ° C,
  • possibility to turn off the regulator after the heating season,
  • signaling of discharged batteries,
  • correction of temperature indications,
  • surface-mounted version.


EUROSTER 4020TXRX - catalog card.pdf
EUROSTER 4020TXRX - user manual.pdf
EUROSTER 4020TXRX – deklaracja zgodności.pdf
EUROSTER 4020TXRX – instrukcja obsługi.pdf

Technical data

Euroster 4020TXRXB

Device controlled heating / air conditioning systems
Controller supply voltage 3V - 2 AAA alkaline batteries
Receiver supply voltage 230 V 50 Hz
Maximum load 5 A 250 V 50 Hz
Regulator output relay, voltage free, SPST (NO)
Temperature measuring range from 0 ° C to + 99 ° C
Temperature control range from + 5 ° C to + 35 ° C
Temperature control accuracy 0.1 ° C
Accuracy of temperature indications 0.1 ° C
Hysteresis range 0.2 ° C to 10 ° C in 0.1 ° C steps or PWM mode
Working temperature from + 5 ° C to + 45 ° C
Storage temperature from -0 ° C to + 50 ° C
Level of security IP 20
Colour black
The method of mounting the regulator stand
Receiver mounting method socket 230 V 50 Hz
Regulator weight without batteries 120 g
The mass of the receiver 170 g
Standards, approvals, certificates compliance with RED, EMC, LVD and RoHS directives
Working frequency 868 MHz
Maximum transmit power <25 mW
Temperature regulator class IV
Contribution to energy efficiency 2% (PWM mode)
Warranty 2 years
Controller dimensions: width / height / depth (mm) 102/97/26
Receiver dimensions: width / height / depth (mm) 82/83/45
Equipment Euroster 4020TX temperature controller, RX receiver, controller stand, batteries, user manual with warranty

Where to buy

You will find us easily
throughout the country

The Euroster Distributor Network is available throughout the country. Select a province from the list below and search for a Euroster distributor in your area. Do you want to become a Euroster distributor or are you our distributor and your company is not on the list? Contact us!

Customer service

tel. 65 571 15 16
Mon. - Fri: 7:00 a.m. - 4:00 p.m.


Please contact us
with our representatives

Service and support

Grzegorz Janusik
tel. 65 571 20 12

Find a distributor

Program Inteligentny Rozwój Program Regionalny Samorząd woj. wielkopolskiego UE EFRR