Sector Antenna GRAD2487

From this site I can find that the price of this is nearly 200 euros or 260$ !!!
http://shop.itconnection.ru/product_info.php?cPath=26_57&products_id=131&osCsid=f5a43f3c297c0be57043aa716207b935
Quick specifications :
Frequency band

2400-2483 MHz
Gain

13 dBi
Maximum input power

100 W
Power distribution diagram

Horizontal: 90°;
Vertical: 18°;
Impedance

50 Ohm
Standing wave coefficient

1,5
Mast mount diameter

35-60 mm
Weight

1.8 kg
Size, L x W x H

250×160x360 mm
Maximum wind speed

160 km/h
Polarization

Vertical
Operating temperatures

-40° … +50° C
Connector

N-Type female
Additional information

Input is DC-circuited
In the russian forums for a lot of antennas this last “Input is DC-circuited” is very critical ! There is some sort of fanaticism about this may be the weather there, I’m not sure why.
Here is link to some pictures of the interior from here :
http://vbm.lan23.ru/wifi/grad2487/grad2487.html