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The image is blurry, 
with vertical stripes 
and uneven 
background.
The image is too 
dark.
Poor image quality / 
Detection range 
reduced. 
Calibration is required.
Brightness or contrast level 
is too low.
Problems described may arise in adverse weather conditions 
(snow, rain, fog etc.).
Carry out calibration according 
to Section 
“SENSOR CALIBRATION”.
Adjust brightness/contrast with 
the UP/DOWN buttons. 
Smartphone or tablet 
PC cannot be 
connected to the 
device. 
Password in the unit was 
changed.
Delete network and connect 
again inserting the password 
saved in the device. 
Smartphone or tablet 
PC cannot be 
connected to the 
device. 
Password in the unit was 
changed.
Delete network and connect 
again inserting the password 
saved in the device. 
No Wi-Fi signal or 
erratic signal.  
The unit is beyond reliable 
Wi-Fi range.
There are obstacles between 
the device and the signal 
receiver (i.e. concrete walls). 
Place the device in line-of-sight
of the Wi-Fi signal. 
There are too many Wi-Fi 
networks in the area where the 
scope is located which may 
cause signal interference. 
To ensure stable Wi-Fi 
performance, move the 
riflescope to an area with few 
or no Wi-Fi networks. 
The device cannot 
be powered on 
with wireless remote 
control.
Remote control is not 
activated. 
Low battery.
Activate the remote control 
according to instructions.
Install a new CR2032 battery.
When using the 
scope at below zero 
temperatures the 
image quality is 
worse than at 
positive 
temperatures.
Because of variations in thermal conductivity, objects (surrounding 
environment, background) under observation become warm more 
quickly  at  above-zero  temperatures,  which  allows  higher 
temperature contrast and, thus, the quality of the image produced 
by a thermal imager will be better. 
At  low  operating  temperatures,  objects  under  observation 
(background)  normally  cool  down  to  roughly  identical 
temperatures, which leads to lower temperature contrast, and to 
image quality (precision) degradation. This is normal for thermal 
imaging device.
Follow the link to read FAQs on thermal vision 
http://www.pulsar-nv.com/support/faq/ 
Check
Corrective action
Problem
26
25
Color stripes appear 
on the display or 
images disappears. 
The device has accumulated 
static charge during 
operation. 
As soon as the impact of the 
static charge is over, the device 
may reboot automatically; 
alternatively please turn off and 
restart the device.