Bio-Rad Model 680

This used Bio-Rad Model 680 microplate reader is a trusted absorbance instrument commonly found in molecular biology and immunology laboratories. It performs endpoint and kinetic absorbance measurements across the visible spectrum, making it suitable for a wide range of colorimetric assays including ELISA and protein quantification protocols. The unit has been inspected for optical performance and general operational readiness. The Model 680 is known for its rugged, simple design and long service life, characteristics that have kept it in active circulation across many labs long after newer models were introduced. It reads standard 96 well plates and works with Bio-Rad's Microplate Manager software, which many labs already use for data analysis and reporting. Its straightforward menu driven interface makes it accessible to technicians at all experience levels. This reader is a solid fit for teaching laboratories, small diagnostic labs, and research groups needing dependable absorbance detection on a limited budget. Given its reputation for durability, the Model 680 remains a frequently traded used instrument on the secondary market. It offers laboratories an affordable and proven solution for routine colorimetric assay work.