Sound sensor to catch a frequency that a saw gives off?

Hello all, I’m needing help with finding a sound sensor of some type that will help me detect a specific sound that a saw motor gives off when it’s about to get choked up? Also in the same location there are over 50 motors running at the same time this saw is, so it’s very loud in the area. I’m needing a sensor that can handle all this noise and still be able to detect the saw noise ?