Description
This signal whistle or warning whistle made of nickel-plated brass is also used by the London Metropolitan Police. Known for its distinctive sound that reaches up to 1.5 km.
Product Information:
- Frequency: 1860 – 2135 Hz
- Pitch: very high
- Sound pressure: 87 db
- Volume: very loud
- Colour: Silver
- Weight: 20 gm.
- Dimensions: length 6.5 cm
- Diameter: 2.0 cm
- Material: Brass nickel-plated
