Hello @Mrwizard 

Range Extender is usually for indoor usage and extend network inside the house.

Connecting one extender to another is not very ideal for the second range extender,it is recommended to connect both extenders to the router directly to use them. 

To extend further range, please check this thread that may help: 

Re:Can I connect 2 range extenders sequencially to extend the signal even further?-Solution

May I know do you wish to extend Wifi indoor or outdoor?  

If you wish to extend Wifi network into different rooms: you could consider a Router<Ethernet>-RE(AP mode) and have a RE(AP) in each room to ensure good and stable wifi signal. 

If you wish to extend Wi-Fi signal to an open area like  vacation resort, an Outdoor Access Point like Outdoor EAP may work for you, please start a thread in our Business sub-forum so moderator or users could provide suggestions there.