This buzzer from Moflash is an energy-efficient audio signalling solution for industrial and commercial environments. It's made of acrylonitrile butadiene styrene (ABS) that's durable and corrosion-resistant, so it offers a long service life. The buzzer's distinctive noise is made by applying an electric charge that deforms the piezoelectric material inside the unit and produces a high-pitched sound. You can configure this unit to produce either a fast pulse or a continuous tone, giving you versatility in your alarm system setup. Piezo buzzers like this are useful in areas where minimal energy consumption is critical.

• Compact 43mm diameter to fit into small spaces
• Panel mounting style with locking ring for easy installation
• Low current rating of 25mA for energy efficiency
• Low 0.08kg weight makes it easy to handle
• IP55 (ingress protection) rating indicates limited resistance to dust and low-pressure water jets from any direction

• Automotive applications
• Safety systems
• Pest repellent devices

You can power this device by simply attaching it to a DC supply on the electrical panel where it's mounted.