Expected Lifespan/Replacement Cycle for Davis weather station parts

This list is a combination of our own experience and Davis' recommendations.

CR123 Battery: ~2 years. Highly dependent on the amount of available sunlight to the ISS during daylight hours.

Radiation shielding: ~5-7 years. Removing accumulated debris regularly from the shielding surface will prevent it from becoming difficult to remove as the shielding patinas, reducing the shielding's effectiveness.

Wind Speed Cartridge: 3-5 years or more. This is highly dependent on local conditions. Windier and coastal locations, where weather conditions are more stressful on equipment, may result in shorter equipment lifespans.

Rain Gauge Mechanism: 3-5 years or more. Regular cleaning and maintenance will substantially extend the life of the mechanism.

Housing: 10-20 years. The exterior housing of your station should be free of discoloration and deterioration for as long as a decade. However, as the station ages, the natural decline of the plastic will make it more susceptible to damage during severe weather events (such as hail).

Sensors: 5- 20+ years. Sensor failure before the fifth year of regular use is infrequent. However, as the station ages, you are more likely to have to replace at least one of the sensors inside your station. But we've heard of Davis stations working as long as two decades without the need for replacement.