The contractor must provide all labor, materials, and equipment to maintain and perform preventive maintenance on a REVOLVE R4 Upright & Inverted Capability fluorescence microscope. This microscope enables HAMB researchers to detect and capture fluorescent signals from cells for critical experiments, including assessing cell viability and gene expression. It is essential for work with viruses encoding fluorescent genes and for imaging live-virus-infected cells. The integrated camera allows high-quality images for record-keeping and scientific publications. No timelines, budget amounts, or performance location were specified in the description.