Sensors that comply with the IEEE 1451.4 standard will work with the NI Plug & Play Sensor Development Kit. There is actually an NI Sensor Advisor online that helps you decide what sensor you need (manufacturer and sensor type) for your application. I have included a link to this advisor below. This advisor should be able to help you. I have also included a link that contains all of the NI Plug & Play Sensor Partners. I hope this helps.
Plug & Play Sensor Advisor
http://sine.ni.com/apps/we/nipc.main?action=search_line&plid=1042
NI Plug & Play Sensor Partners
http://ni.com/devzone/advisors/sensor_advisor.htm
Regards,
Todd D.