It is a continuous Tone. As long as it is been powered it will Beep continuously. Sound Output: 100dB at 12V DC 30cm, Response Frequency: 3000±500Hz, these buzzers are very loud which are not used indoors, them could be used outdoors, such as traffic, factory, etc.
eBay
◆If there are no special circumstances, your product will not be delayed in arrival.
eBay
Drive Mode: Piezo electric. Item Type: Buzzer. 10 x Buzzer. Active Head: Active. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Easy Installation: Equipped with a 2-wire for direct connection to any 3 to 24V power source, it features a complete driver circuit for straightforward operation. Audible Output: Provides a minimum of 85dB of audible output and a response frequency of 3300 +/- 500Hz, making it an effective electric alarm capable of producing clearly audible alerts.
eBay
Lot of 10 PUI Audio Piezo Buzzer. Rated Current: 8mA. PUI Audio. Sound Level: 95dB. The Original Manufacturer's warranty does not apply. This is a surplus item. More Information SKU# SB-195710.
eBay
Sound insulation index: 120dB. - Sound pressure: 120DB. - At 120dbs, this siren will not only neighbors to an intrusion, it will also scare burglars out of your house. - This piercing plug-in siren into your keyboard/console.
eBay
◆If there are no special circumstances, your product will not be delayed in arrival.
eBay