FotodioX Bay 50 to 52mm Aluminum Step-Up Ring Radio & Optical Slaves and now we’ve found another

and now we’ve found another great part in the series

you can attach an Arduino

Simply clip the Pulse Sensor to your earlobe or finger tip and plug it into your 3 or 5 Volt Arduino and you’re ready to read heart rate

Input Voltage Range: 4

LED Indicator Lights

FotodioX Bay 50 to 52mm Aluminum Step-Up Ring Radio & Optical Slaves and now we’ve found anotherUse 52mm Filters on Bay 50 Lens Corrosion Resistant Anodized Aluminum Matte Black Finish Minimizes Reflections The FotodioX Bay 50 to 52mm Aluminum Step Up Ring permits the use of 52mm threaded filters on lenses with a Bay 50 filter mount. This step up ring features an aluminum alloy construction that has a corrosion resistant, matte black, anodized finish for durability and to minimize reflections. UPC: 812759011158 Size Bay 50 to 52 mm Thickness 8