The Open Colorimeter Plus is the latest version of the Open Colorimeter variants specifically for fluorescence measurements. The Open Colorimeter Plus measures light from a sample under excitation by UV, visible or IR light. This is a portable, stand-alone instrument. The Open Colorimeter Plus uses a TSL2591 light sensor (the same light sensor used in the standard Open Colorimeter) placed at a right-angle (90°) to the excitation LED. A PyBadge is pre-programmed with open source CircuitPython firmware. Light detected by the 90° measurement sensor is viewed as counts, irradiance (µW/cm²) or relative (normalized) fluorescence units. A second TSL2591 light sensor at 180° can be used to calibrate/normalize measurements to the excitation LED intensity. The Open Colorimeter Plus design works with standard 0.2 mL PCR-type tubes though a cuvette-version is also available. The Open Colorimeter Plus enclosure is made from 3D-printed black resin. An electronics cover is 3D-printed from black PFA filament. This cover is easily removable so you can easily change out the excitation LED and/or insert emission filters. More details including links to the hardware designs and open source firmware are included in the online Product Guide. Product Features The Open Colorimeter Plus ships pre-programmed & ready-to-use. No assembly, soldering or programming is required Includes a USB cable for battery-charging or power Includes a light-blocking cap to place over the tube during measurements Includes set of 6 x 0.2 mL PCR/microfuge tubes Minimum sample fill volume: 50 µL Customize the excitation LEDs & emission filters (not included) The Open Colorimeter Plus works with any of our UV, Visible or IR single-wavelength LED boards. Select the appropriate excitation LED for your fluorophore/sample. If your preferred wavelength is not listed, please contact us. Emission filters are not included. Check out the Product Guide for some suggested filters. Documentation: Open Colorimeter Product Guide The Open Colorimeter Plus test and measurement equipment is for research use only (see Terms and Conditions).
