Push-button housing for pole mounting for remote control wireless relay

To switch the water pump for the garden, I have built a wireless button in a housing.

To switch the water pump for the garden, I have built a radio button (22mm button) in a housing. 

The housing can be attached to an approx. 77 mm pole using cable ties. 
I designed the housing to be waterproof and printed it in ASA. 
For the radio transmitter, I dismantled the hand-held transmitter of the “Wireless Remote Control Switch” and connected it to the button.
I use a 1 mm silicone cord as a sealing ring
The 4 holes in the housing have a diameter of 4 mm. M3 threaded inserts can be melted into these holes. The model was created using FreeCAD and may also be used if anyone make changes.