The LTC Levelogger Edge combines conductivity, pressure and temperature sensors in one compact device. It comes complete with a battery that lasts up to eight years and datalogger with memory for 27,000 sets of readings. The 4-electrode platinum conductivity sensor has autoranging from 50 to 80,000 µS for maximum accuracy. A Titanium ceramic PVD coating and Hastelloy pressure sensor protect the instrument from corrosion.