What is an LRN probe?
The LRN probe is used to monitor the surrounding environment. The probe is wirelessly connected to the Smartbox via the LoRa protocol. During transport, the probe monitors the surrounding temperature, humidity, air pressure, light level, and also provides information about tilt, 3D orientation, and G-forces. All this data is sent to a server, allowing the user to monitor it in real time. Limits can also be set for transport, which the monitored values must not exceed. If these limits are exceeded, the system can react to the situation in a predefined way.
Programmable sensors
About the sensors in the probe



Internal temperature
-20°C to +60 °C
Resolution: 0.1 °C
Precision: +/- 0.1 °C (+/- 0.5°C)
-20°C to +60 °C
Resolution: 0.1 °C
Precision: +/- 0.1 °C (+/- 0.5°C)

External PT100 terminal
-100 °C to +50 °C
Resolution: 0.2 °C
Precision: < 1 °C
-100 °C to +50 °C
Resolution: 0.2 °C
Precision: < 1 °C

Relative humidity
0 to 100 %
Resolution: 1%
Precision: typ. +/- 2%
0 to 100 %
Resolution: 1%
Precision: typ. +/- 2%

Atmospheric pressure
30 to 110 kPa
Resolution: 0.2 kPa
Precision: typ. +/- 1kPa
30 to 110 kPa
Resolution: 0.2 kPa
Precision: typ. +/- 1kPa

Light levels
1lx to 50000lx
256 levels
Spectral range
430 to 610 nm
1lx to 50000lx
256 levels
Spectral range
430 to 610 nm

Tilt & 3D orientation
0 to 180°
Resolution: 1 degree
0 to 180°
Resolution: 1 degree

G-forces
0 to 8G
Resolution: 0.1 G
0 to 8G
Resolution: 0.1 G

Impact / Free-fall counter
Continuous sampling at 100 Hz
Continuous sampling at 100 Hz
Examples of measuring devices

Programmable parameters

