Record accurate and reliable pH, mV, ORP, conductivity, total dissolved solids (TDS), salinity, resistivity and temperature measurements with the Thermo Scientific Orion Star A215 pH and Conductivity Benchtop Meter, ideal for a wide range of applications and advanced pH and conductivity analysis in the lab. Use the two meter channels to measure pH and conductivity simultaneously or view each channel separately. Perform up to a 5 point calibration, log up to 2000 data point sets with time / date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer. Features: Combined convenience with the benefits of a pH meter and conductivity meter in one easy-to-use systemMeasure pH, mV, relative mV or ORP with temperature on channel one and measure conductivity, TDS, salinity or resistivity with temperature on channel twoEasily view individual measurements on a full screen display and quickly toggle to a split screen display to view multiple measurements simultaneouslyPerform up to a five point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer valuesPerform up to a five point conductivity calibrationCalibration editing option allows individual points to be fixed without a full recalibrationAuto-ranging conductivity values offer consistent readings across entire measurement range without need to recalibrateUse linear, non-linear, EP (USP) or off conductivity temperature compensation with 5 , 10 , 15 , 20 or 25 C reference temperaturesInformative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operationCapture your critical readings with measurement stability indicator and selectable read modesAUTO-READ holds a stable reading, Continuous shows changing readings with hold option and Timed logs data at specific intervalsEliminate the need for magnetic stir bars using the meter-controlled stirrer probe (catalog number 096019) to uniformly mix solutionsData log collects and date/time stamps up to 2000 measurement sets with optional sample ID and user IDCalibration log stores ten most recent calibrationsNon-volatile meter memory ensures your data and settings are protected, even with loss of powerOrion Star Com software facilitates data transfer to a computer via USB or RS232 connectionsFlexible power options with universal power adapter or optional AA batteriesIP54-rated housing resists dust and splashes and can be wall-mounted if table space is limitedMeters include CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty Includes: Star A215 pH/conductivity meter8157BNUMD Orion ROSS Ultra Triode refillable, epoxy-body pH/ATC electrode 013005MD Orion DuraProbe conductivity probe ROSS pH buffer & solution kit011007 Orion 1413 S conductivity standardAttached electrode stand and holderUniversal power adapterPrinted quick start guide and literature CDUSB computer cable Note: WILL NOT SHIP TO RESIDENTIAL ADDRESSES.