Acceptance of goods occurs after the lessee has had a reasonable opportunity to inspect the goods and:
(a)
The lessee signifies or acts with respect to the goods in a manner that signifies to the lessor or the supplier that the goods are conforming or that the lessee will take or retain them in spite of their nonconformity; or
(b)
The lessee fails to make an effective rejection of the goods (subsection 2 of NRS 104A.2509).
2.
Acceptance of a part of any commercial unit is acceptance of that entire unit.