In positive temperature conditions, objects being observed (surroundings and 
background) heat up differently because of thermal conductivity, thereby generating 
a high temperature contrast. Accordingly, image quality produced by the device will 
be higher. 
In low-temperature conditions, objects being observed (background) do, as a rule, 
cool down to roughly the same temperature, because of which temperature contrast 
is substantially reduced and image quality (detail) is poorer. This is a feature of 
thermal imaging devices.
By following the link below you can find answers to the most frequently asked 
questions about thermal imaging https://www.pulsar-nv.com/glo/support/faq/79 
Environment protection first!
Your appliance contains valuable material which can be recovered or recycled.
Leave it at a local civic waste collection point.
Attention! AXION KEY thermal imagers require a licence when exported outside your country.
Electromagnetic compatibility. 
This product complies with the requirements of European standard EN 55032: 2015, Class A.
Caution: Operating this product in a residential area may cause radio interference.
The term of possible repair of the device is five years.
 
Coloured lines 
appeared on display 
or image has 
disappeared.
Image is too dark. 
Thermal imager does 
not power up.
Malfunction
Image is unclear, with 
vertical lines and 
uneven background. 
Does not operate 
from external power 
source.
When used in low 
temperature 
conditions, image 
quality of the 
surroundings is 
worse than in 
positive temperature 
conditions.
Poor image quality / 
reduced detection 
distances.
The device was exposed to static 
electricity during operation.
USB cable damaged.
Low brightness or contrast level set.
Possible reason
Battery completely discharged.
External power source discharged.
Calibration required.
 
Perform image calibration according to 
Section 'Operation' of the Instructions.
Correction
Charge the battery.
Replace USB cable.
Charge external power source (if 
necessary).
Adjust brightness or contrast. 
After exposure to static electricity, the 
device may either reboot automatically, 
or require turning off and on again.
These problems may occur during observation in difficult weather conditions (snow, 
rain, fog etc.). 
7