From classic "honks" to complete acoustic systems A Kockum Sonics whistle is not only a high-quality design, it also contains the experience of more than 1 million TYFON® installations! Audibility is determined not simply by the strength of sound emanating from the whistle - much more is entailed to overcome absorption, distortion and local noise.

From classic "honks" to complete acoustic systems A Kockum Sonics whistle is not only a high-quality design, it also contains the experience of more than 1 million TYFON® installations! Audibility is determined not simply by the strength of sound emanating from the whistle - much more is entailed to overcome absorption, distortion and local noise.

From classic "honks" to complete acoustic systems A Kockum Sonics whistle is not only a high-quality design, it also contains the experience of more than 1 million TYFON® installations! Audibility is determined not simply by the strength of sound emanating from the whistle - much more is entailed to overcome absorption, distortion and local noise.

From classic "honks" to complete acoustic systems A Kockum Sonics whistle is not only a high-quality design, it also contains the experience of more than 1 million TYFON® installations! Audibility is determined not simply by the strength of sound emanating from the whistle - much more is entailed to overcome absorption, distortion and local noise.

The Walker 2080 MK2 uses a Solid State Ultrasonic Wind Speed & Vane Direction Sensor, the P292. This gives high accuracy in a robust compact package… with no moving parts to wear out! The Sensor connects directly to a standard Walker DIN 144 wind speed & direction indicator, the P1249, which gives digital displays of relative wind speed & direction. Wind direction is also displayed on a simulated analogue display by use of OLED technology. True wind systems are available by using this sensor with the Walker P1066 True Wind Interface Unit.