Since declaring a national emergency, Nauru had also received aid from other partners to respond to the pandemic.
Nauru's government said "the gold standard" testing machine would significantly reduce weeks of waiting time for testing in Australia.
It said Australia had provided about US$60,000 for the purchase of testing kits and the World Health Organisation had supplied personal protective equipment.
This included 7000 sets of gloves, 13,000 surgical masks and 200 surgical gowns.