Thermo Scientific RadEye G20-ER Operating Instructions Manual page 20

With the setting of the history recording interval of 120 s, the
last 52 hours of operation will be stored in the history memory.
The parameters (except calibration parameters) can be changed
with the help of RadEye buttons and the optional PC-program
"RadEye.exe" V1.30 and the cable 42540/29 or /26.
The calibration parameters can only be changed in the factory
using special software tools.
2-6 DB-067 E RadEye G20
Iw/Tr/Ff 26.11.2012