Wind turbines are exposed to oscillations and shock loads. In order to avoid damage and expensive downtime, these tower oscillations are monitored. When exceeding limit values, the plant is reliably shut down. From load history, lifetime prediction can be deduced. Prerequisite is the reliable and accurate detection of loads. Inclination and acceleration sensors from Micro-Epsilon detect the tower oscillation to the highest precision. Even with strongly fluctuating temperatures, inclination and acceleration sensors provide reliable measurements due to their excellent temperature stability.