Present Weather Detectors PWD22 and PWD52

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.

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.

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.