Measurement equipment for climate data in bee hives

I use data loggers from Thorsten Gurzan ( to collect climate data from beehives. In particular, the Beelogger Solar SD is in use. This special version of the Beelogger Solar is not yet available on the website, because – with my cooperation – it is still under development. However, the manual and a program code with standard setup will be available shortly.

Beelogger Solar SD
Beelogger Solar SD

Beelogger Solar SD

  • Waterproof housing, suitable for outdoor use, with screw-on device
    Each measuring station contains 3 combined sensors for humidity and temperature, with an accuracy of ±0.5°C or ±3%.
  • Equipped with a real-time clock, i. e. the data is written with a time stamp. This real-time clock also records the temperature in the housing.
  • The card in the SD card holder can be removed at any time. If it is pushed back in again, writing continues automatically.
  • The sensors are calibrated and adjusted at 75% relative humidity. Experience has shown that relative humidity between 50 and 90% is recorded fairly accurately in hives during the different seasons. In addition, the range between 70 and 80% is particularly interesting, as the risk of mould increases considerably from this humidity.
  • 3400mAh battery and a small solar panel ensure maintenance-free operation. Combined with the extremely low power consumption, the unit is likely to work without problems even in the forest and in winter with a fully charged battery.
  • Power consumption is likely to be unique. After a measurement, the software sends all components to sleep. In this sleep phase, the unit consumes 8-10µA, which is almost nothing. After a freely adjustable interval, the complete unit is “woken up”again for the next measurement.
  • The unit can theoretically record maintenance-free for years.
  • Modifications and extensions are possible.
Beelogger Solar SD
Calibration of the measuring stations Beelogger Solar SD