We present a new probe design that utilizes two different size diameter fibers with the face polished at a 65 degree angle to make independent diffuse light reflection measurements. The device consists of 200 and 1000 microns diameter fibers that measure the amount of diffuse light scattered back into the emitting fiber. Only one fiber emits and collects light at a time using a 632 nm He-Ne laser source. Repeated measurements are presented of an epoxy block tissue phantom (N=12) and from in vivo skin (N=13) on the ventral side of the forearm. The new probe design is demonstrated to reduce measurement variability in the 1000 micron diameter fiber from a standard deviation of 1.5 percent down to 0.6 percent and for the 200 micron diameter fiber from a standard deviation of 7.3 percent, down to 1.2 percent, as compared to a prior probe design with fibers polished at 90 degrees. We also present measurements of a first surface mirror, which demonstrate a reduction in specular reflection noise collected by the 65 degree polished fibers. Finally, measurements are presented for an array of Intralipid and India ink tissue phantoms with optical properties in the range of tissues, where scattering ranges 13−28 cm−1 and absorption ranges 0.1−1.6 cm−1 at 632 nm to show the ability to resolve changes in optical properties.