KROHNE introduces SMARTPAT COND 1200, 1200, 3200 and 5200 sensors, a series of digital, two-wire, loop-powered sensors with integrated transmitter technology for conductivity measurement in liquids. Using a VP cable, any SMARTPAT sensor can be connected directly to the process control system via a 4.20 mA/HART 7 interface. An additional transmitter on-site is no longer necessary; SMARTPAT sensors can be configured and calibrated off-line, on-site.
http://krohne.com/en/newsdetail/article/new-smartpat-conductivity-sensors-510/