Hand Crank Raid Siren

The YaeTek Hand Crank Raid Siren is a powerful and reliable manual-operated alarm device designed for portability and efficiency. With a loud 115dB output and a rate of 500±20 HZ, this hand-cranked siren is compact, measuring 190190170mm, and requires no external power source. Its easy-to-carry design makes it suitable for a wide range of applications, and its long-life advantages add to its durability. The sound intensity is directly linked to the rotation speed of the handle, allowing users to control the alert level manually. By rotating the handle, the gearbox undergoes step-by-step acceleration, producing a robust and attention-grabbing sound, making the YaeTek Hand Crank Raid Siren an effective and versatile emergency alert solution.