Sand production is a common problem in oil and gas production. The sand production causes loss of pipe wall thickness that can lead to expensive failures and loss of production time. There are many ways to alleviate or at least reduce sand erosion problems. However, an important unknown is the quantity of sand being produced in the well. One method to evaluate sand production is by using sand monitors and/or erosion/corrosion monitors. Several commercially available acoustic sand detectors and an intrusive erosion probe were investigated to address their effectiveness in quantifying the amount of sand that is entrained in multiphase flow. In the present work, data from the sand monitors are analyzed and are compared to results from a model that calculates particle impact velocity and erosion rates. The results indicate that there is a direct correlation between outputs from sand detectors and the erosion model. Therefore, results from sand monitors can be interpreted using an erosion model. Keywords: erosion, sand probes, sand detector, erosion model