Wind and lightning damage (check EMC test results of our anemometer) are the most prevalent forms of sensor and weather station damage. Protecting your valuable sensors from damage is probably high on your priority list. Wind and lightning damage are the most prevalent forms of sensor and weather station damage. Wind brings with it debris, branches, sand, rocks and hail to impart physical damage to sensitive components. Lightning destroys electronics and melts metal and plastic parts.
Lightning is a force of nature and wind creates the energy in lightning. It is the friction of air molecules against other air or the ground or against moisture with dust that strips electrons from air molecules to create spectacular light shows between clouds or between ground. The energy in lightning is immense. It takes about 3 million volts for lightning to jump 1m (3ft). No weather station can survive a direct hit. Even a near miss has enough energy to damage sensitive sensor equipment. Thus lightning protection is of utmost importance to protect your sensor investment. A lightning rod will protect equipment in a 45 degree cone underneath its tip (same distance away as below the tip). It is however important that a minimum distance between the lightning rod and sensor equipment be maintained and lightning can jump and flow through multiple channels to the ground.