how much does it cost for SECURE long term apartments in Xiamen. Minimum 3 months up.

I have been asked if I would be interested in working there. My monthly wage will include accomodation which if too costly will make it not worth my while.I would like Security as a main feature and be able to be self contained being able to wash my clothes etc.I have looked on the internet but it is difficult to find. Can you please help.

Regards Mike