Vaisala Present Weather Detectors PWD22 and PWD52

Measure prevailing visibility and detect precipitation type Vaisala's PWD-series of present weather detectors and visibility sensors provide you off-the-shelf accuracy and reliability Features  • Accurate, traceable measurement of prevailing visibility  • Detects precipitation type  • Measures the intensity and accumulation of precipitation  • Estimates snow accumulation  • Indicates the cause of reduced visibility  • Robust and dependable  • Weather-proof design reduces need for maintenance  • Easy to install, easy to integrate Key Benefits • ​Accurate and traceable measurements of visibility   • Calibrated with reference to a highly accurate transmissometer, PWD22 & PWD52 use a proven forward scatter measurement principle to record meteorological optical range (MOR) and offer well-protected optics to guard against contamination.  • Solid track record   • Thousands of PWD series have been installed around the world and undergone rigorous testing programs. In the field, Vaisala's PWD sensors have very low failure rates and have demonstrated their robustness through high performance in some of the harshest climates, ranging from offshore to desert and from airport to roadside deployments.  • Visibility measurements for a wide range of applications   • Our systems provide long-range visibility measurements for a diverse set of environments, from harbors and coastal areas to heliports and even wind turbines. Wherever visibility measurements are necessary, Vaisala offers a cost-effective and reliable solution.