Is it possible to replace this thermostat for Tado?

Manu

I guess regarding the diagram I have to connect the wires of the last image (L N) but does Tado thermostat needs a external power source? has some kind of batteries?

https://docs-emea.rs-online.com/webdocs/0dac/0900766b80dac1e4.pdf

mroelandts

The smart thermostat works on batteries.