Environmental Sensor Suggestions?

I'm having difficulty looking for a replacement of NetBotz to monitor all DCs/IDFs and fully supported by LM. Does anyone have recommendations?

I'm guessing we want two tiers of monitoring: some with cameras and detailed sensors, the rest with just temperature sensing in random closets. NetBotz run a big expensive, but if they are the best choice I'm ready to make the case. I've heard good things about ITWatchDog, but can't find anything the DataSources for them.