High resolution color display shows data clearly from wide viewing angles and distancesOptimized touch-screen with glass/glass sensitivity provides great ease of useOnscreen info includes date and time, stability indicator, alarms and context-specific “help” screensOne to six point pH calibration with 0.001 pH resolutionAutomatic buffer recognition with six pH buffer sets or custom buffer optionTwo to six point ISE calibration with 0.001 ppm, mg/L or molar resolutionISE methods for known addition, known subtraction, analyte addition and analyte subtractionAutomatic or manual temperature compensation, displayed in °C or °FDisplay two pH or ISE measurements simultaneously with dual channel BNC inputsUp to 10 password protected user ID accounts, each retains unique calibration and instrument settings with memory to store 2000 data pointsRS232 and USB interfaces for printer or computer interfacing and real-time onscreen graphing of measurementsRJ45 Ethernet/Internet port to connect Local Area Network (LAN) or InternetBidirectional communication for LIMS connectivity and 3rd party softwareConnectivity for peripherals such as keyboard, mouse or other USB deviceMultilanguage interface with English, German, Chinese, French, Italian and SpanishTwo ports for optional stirring probe (13-620-BSP) with five speed settingsOption to wall-mount meter to create additional bench spaceNIST-Traceable Calibration Models (-CERT)Help meet ISO, FDA, USDA and EPA quality assurance guidelinesIncludes meter accuracy at five test points across pH rangeIncludes meter accuracy at five test points across corresponding mV rangeTesting performed by accredited laboratory, includes NIST-Traceable certificateSpecificationspH Range: -2.000 to 20.000 pHpH Resolution: 0.1, 0.01, 0.001 pHpH Accuracy: ±0.002 pHISE Range: 0.001 to 19999 ppm, mg/L or molarISE Resolution: 0.001, 0.01, 0.1, 1 (automatic)ISE Accuracy: 0.5 % full scale (monovalent ion); 1 % full scale (divalent ion)mV Range: ±2000.0mVmV Resolution: 0.1mVmV Accuracy: ±0.2mV or ±0.05 %, whichever is greatermV Offset Adjustment: Up to ±150mVTemperature Range: -5° to +105°C (23° to 221.0°F)Temperature Resolution: 0.1°C (0.1°F)Temperature Accuracy: ±0.2°C (±0.3°F)Calibration Points: 1 to 6 points with automatic buffer recognition (ABR)ISE Calibration Points: 2 to 6 pointsATC Temperature Calibration: Offset in 0.1°C increments; Offset range: ±5°C (±9°F)Memory: 2000 data sets per user ID with date/time stampSelf-Test: YesInputs: Two BNC, 2 mini-phone ATC, groundPower Requirements: 100 to 240VAC, 50/60HzDimensions (L x W x H): 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.)Weight: 1.13kg (2.5 lb.)ApplicationsPharmaceutical, biotech, research, QA/QC, industrial, food, beverageIncludes: 13-636-XL250A: accumet XL250 pH/ISE dual chan. meter, electrode stand, RS232 and USB cables, 100/240V univ power supply. 13-636-XL250F: accumet XL250 pH/ISE dual chan. meter, fluoride electrode (13-620-629), TRIS-compat double junc refillable pH electrode (13-620-183A), ATC probe (13-620-19), electrode stand, RS232 and USB cables, 100/240V univ power supply. 13-636-XL250N: accumet XL250 pH/ISE dual chan. meter, ammonia electrode (13-620-509), TRIS-compat double junc refillable pH electrode (13-620-183A), ATC probe (13-620-19), electrode stand, RS232 and USB cables, 100/240V univ power supply. 13-636-XL250: accumet XL250 pH/ISE dual chan. meter, TRIS-compat double junc refillable pH electrode (13-620-183A), ATC probe (13-620-19), electrode stand, RS232 and USB cables, 100/240V univ power supply. XL250ACERT: accumet XL250 pH/ISE dual chan. meter, electrode stand, RS232 and USB cables, 100/240V univ power supply, NIST certif. XL250CERT: accumet XL250 pH/ISE dual chan. meter, TRIS-compat double junc refillable pH electrode (13-620-183A), ATC probe (13-620-19), electrode stand, RS232 and USB cables, 100/240V univ power supply, NIST certif..