The SZ-010 is a Patlite electronic sounder that is composed of a small amplifier and speaker housed in a plastic enclosure. It is used to produce audible signals, such as a chime, siren, horn or beep. It is typically used in safety, security and industrial applications. The SZ-010 is capable of producing a wide range of sounds at different volume levels, allowing users to choose the type of warning they prefer. It has a low-cost construction and features a wide frequency range, adjustable sound volume, an IP66 rating for harsh environments, and built-in self-diagnostic indicators. The SZ-010 is a reliable, easy-to-install sounder for industrial, commercial, and residential applications.