The Chinese seem to have an externally mounted targeting pod with thermal sighting capabilities for the SU-30 aswell.
Here's the proof on SU-34. Note, the top video is from the Russian ministry of defense youtube channel.
Bombing video, Syria:
Video
SU-34 thermal pod source
The laser/camera pod:The planned internal electro-optical suite appears to have vanished in more recent reports, with claims that the Sapsan-E thermal imaging and laser targeting pod will be carried externally, probably on the No 9 ventral inlet station.
Video
SU-34 firing rockets, view from the gunner's thermal optics:
Video
And here on SU-30 optics:
Wikipedia on SU-30 MKK Optronics
FILAT targeting pod
Domestic Chinese optronics including FILAT and Blue Sky (navigation pod) can also be carried after modification of onboard system. Just like the incorporation of domestic Chinese electronic warfare pods such as BM/KG300G and KZ900 to Su-30MKK, such modification was neither part of the original deal nor the upgrade deal with Russians, instead, this was implemented indigenously by the Chinese themselves during the incremental upgrades. According to Chinese claims, the domestic upgrade of Su-30MKK/MK2 were much smoother and easier than that of earlier Su-27SK, thanks to the western MIL-STD-1553 standard Russian adopted for Su-30MKK series.
FILAT (Forward-looking Infrared and Laser Attack Targeting) pod is an airborne targeting pod designed to provide aircraft with all weather / night attack capabilities.
