The DR22B5-EB is a 22mm electronic buzzer designed for audible alarm and notification applications in industrial control systems. It features electronic sound generation with a sound level of 90 dB at 0.1 m and 70 dB at 1 m, operating at 12-24V AC/DC without a transformer. The buzzer includes an LED operation indicator (red) and offers intermittent or continuous sound selection via a short-circuit terminal configuration. It has a rated insulation voltage of 60V AC/DC (without transformer), operates at a frequency of 2.4 to 3.3 kHz with an intermittent cycle of approximately 170 cycles/min, and maintains a durability rating of 1000 hours. The device is suitable for machine control panels, alarm systems, and process automation where reliable audible feedback is required.