(1)
TP-Link: Detachable Antenna model 5 dBi some models have WDS also
similar to WA3002_g1 and similar 15 modELS use same boARD ((with without wifi)
Example Sterlite Sam300AX /IbBall Baton/Akeeo/HG520/Trendnet /Beetel 450TCI/Binatone 845W etc ..
Check for prices of all makes here.
TP LINK
(2)
Belkins Dual antenna model Whether detachable not known )
Wifi range claimed 300Meters ( *conditions apply !)
(3)
D-Link DSL2730U ( Higher priced with USB storage port DSl2750U)
Range may upto 30 Meters
take it with a pinch of
TATA Salt !!
Same as Wa3002G4 probable attraction WDS >
( see my sticky post WA3002_g4 quick ref in BSNl forum )
Two wifi
routers with WDS/WDM can link without wires to increase range.
Example: given for AP models : same for routers.
I use NetgearWGR614V6 and get a wifi range of about 30 feet ( ground floor)