In industry, alarm bells can be used to warn of danger or signal outages. The industry is subject to national and international safety standards that require the installation of appropriate safety warning signaling devices. Grothe's small or large alarm bells can be used to initiate alarms in situations where it is essential to ensure the safety of personnel and protect their health. Universal sound generators have very high volume, a large number of distinct signal tones, and convenient installation flexibility for indoor and outdoor use (e.g. in schools, airports, industrial sites, public buildings, and other places). A wide range of mounting options: directly on the wall or table or on the ceiling using the included accessories. You can also choose different emission angles. When it comes to electrical wiring, in the future you no longer have to consider which device versions you currently need for your purposes. The PSG 230 sound generator can do it all: supplied with 12 /24 V AC / DC power or for operation with 230 V alternating current; starts with the same voltages, different voltages, or potential free. You can find an overview of the connection in the user manual.