COLE PARMER - OAKTON INSTRUMENTS Part No. 35634-30
Features three-point push button calibration High accuracy ATC Self-diagnostic messaging Non-volatile memory Double-junction polymer sensor Three waterproof pHTestr® models provide highly accurate measurements over a range of -1.0 to 15.0 pH. Large dual-display LCD offers enhanced readability and meter functions such as mode, ATC, battery level and temperature (pH 30 only) are clearly displayed at all times. Units are easy to calibrate with simple two-button operation. In calibration mode, the device auto-detects and displays buffer value in the lower display, thereby minimizing calibration errors. Three-point calibration ensures accuracy across the entire pH scale. Testers feature user-replaceable double-junction sensors. Double-junction construction minimizes reference element poisoning. Sensors are easily replaced without tools or soldering. Non-volatile EEPROM memory keeps data safely stored when power is off or you're changing batteries. pHTestr 30 displays pH and temperature values simultaneously. pH is displayed on the top while temperature is the secondary display. You can choose to read temperature in either ÝC or ÝF. Users also have a choice of USA (pH 4.01, 7.00 and 10.01) or NIST (pH 4.01, 6.86 and 9.18) buffer sets (order separately).