4PCS TDS21 EP Large LCD Touch Screen Room Underfloor Thermostat Smart Temperature Controller Thermoregulator-in Temperature Instruments from Tools

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$ 80.56

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4PCS TDS21-EP Large LCD Touch Screen Room Underfloor Thermostat Smart Temperature Controller Thermoregulator Details & Specification :

Item Specifications
Brand Name beok
Model Number TDS21-EP
Style Embedded
Max Measuring Temperature 70°C- 99°C
Display Size 2.0 - 3.9 Inches
Theory Temperature Controller
Display Type Digital
Usage Indoor
Power Type Charger
Display Type Touch Screen Display Type
Backlight Blue/White Backlights
Current 16A
Voltage 220V/230V
Limitation Setting 5-99Celsius
Temperature Sensor Two sensors; With external sensor.
Weekly Program function Yes




  TDS21 Electric Heating Thermostat   


 TDS21-EP thermostat is used in the 16A electric floor heating system.





Four Colors for choose:      







Thermostat Package   


In the inner packing box, you can find:



Thermostat  1 pc
External Sensor (3 meters) 1 pc
User Manual  1 pc
Screws 2 pcs
Dryer 1 pc





Thermostat Display  






























Thermostat Technical Parameter  



Power consuption:2W;

Setting range:5-60 Celsius;

Floor Setting Range:5-99 Celsius;

Accuracy:±1 Celsius;







Thermostat Wiring Diagram  




Controlled Device



Installation Instruction 



Installation-TDS series




Main Function Operation 



1. Setting the Power ON/OFF

Press kai to turn on/off the power.


2.Setting Temperature

Press  to set the temperature.


3. Setting the Clock

Press clock 1 to set the minute, hour and week. 

Press   to adjust.


4. Setting the Manual Mode

Manual mode means non-programmable mode.

Press 11, then 12 will display on the screen, it is in manual mode.

Press   to set the temperature.

Press clock 1 to set minute, hour and week.


5. Setting the Children Lock

Long Press clock 1 to enter into child lock mode, 13 will display.

Long press clock 1 again, the child lock will be disappeared.


6. Setting the Programmable Mode

Press and hold 11 into programmable mode. LOOP and 12345 will display.

Press  to select the control way:5+2/6+1/7 days programmable.

12345 display in the position of week means 5+2;

123456 display in the position of week means 6+1;

1234567 display in the position of week means 7 days programmable.

Press 11 to select the periods.

Press  to change the temperature.

Press clock 1 to select the time adjustment.
Press  to adjust the time.

Press 11 again to select the weekend's temperature.



If you want to make temperatory adjustment in any period, press 11 then 

12 will flash. When finish the setting, all will automatically confirm.





Press 11to switch operation between manual mode and programmable mode.





Attention: We are Factory!!!!!! 





Please carefully read before you order:




About Color Difference:


The pictures show at our store are taken based on the true products. Because of different monitor and brightness, there may exist normal tiny color difference, espespecially thermostat back light. Please do not make a dispute directly without contacting us.



About Product logo:


We have our own brand "Beok", so generally on our products, our brand "Beok" will print on it. However, for some products, such as thermostats, valves and actuators, we also have some product without any logo. They are the same products. If you do not specially point it out, we will randomly send products with our logo or without any logo !!! 



About Shipment:


1. When you place an order, please choose a shipment method for the order, for free shiping, we will ship by China Post Air Mail. Please pay for your order as soon as possible.


2. Please confirm your provided address Correct. We are not responsible for wrong or undeliverable address.


3. We will send products within 3-5 working days after your payment, for OEM product, we will send you within 7 working days.



4. If you want, we also support to ship by DHL, UPS, FEDEX, TNT or EMS. You need to choose it for the order. 


Delivery Time:


By airmail: 1-3 weeks to Asia, West Euro, East Euro, and North America, Mid-East;

By DHL, UPS, FEDEX, TNT:3-5 working days to most country;

By EMS: 5-10 working days to most country;





1. We are not responsible for any custom duty or import tax. 


2.  If you have questions about shipment, we can help you to track. The provided delivery time is also just for referance, but we do not guarantee delivery time on all internaltional shipment due to differences on customs clearing time in individal countries. It may affect your product inspected speed. Please note that.  



About Gurantee:


We are not a unconditional return store, we do not accept return products because of appearance, color difference, or other non quality reasons. If product has a quality problem, after you receivet the products you ordered in 15 days, you can directly contact with us before a negative feedback. We will refund to you or resend a new one to you immediately!



About Feedback:


Your satisfaction and positive feedback is very important to us. After you receive products, please promptly give us a confirm receipt on Aliexpress. If you are satisfied with items and our products, please leave a positive feedback and 5 STAR. 


If you have any problems with our products and services, please feel free to contact with us first. Please do not leave a negative feedback without any communication with us!!!!


We will try our best to solve any problems and provide you with best customer service.



When you place an order, we will think that you have the default agree with the above items and conditions.