Style:Standard Product Description Extech 407228 Heavy Duty pH/mV/Temperature Meter Kit From the Manufacturer Heavy Duty pH/ORP/Temperature meter simultaneously displays pH or mV and Temperature on a large 1.4-Inch LCD. It features 2 point Calibration and Slope adjustments, manual and auto temperature compensation, Min/Max/Avg, Auto power off, and Data Hold. A built-in RS-232 interface can be used with optional Data Acquisition Software and Datalogger. Comes complete with mini pH electrode, temperature probe, 9V battery, protective holster, and case.
M**E
Product is Misleading
I bought this unit for both ORP (or millivolt/mv) and pH readings, though I did have other ways to check pH. The unit comes without the sensor to get the "mv" readings(!), and nothing was stated about this! When I checked on buying an ORP sensor to go with this meter, some sites said it was obsolete, and some others showed it for about $80. - a significant increase in the unit's price. Also, nothing was stated on the Amazon page about needing the buffer solutions to calibrate the pH function (each time you use it!), even though Amazon sells the buffer solution.
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منذ أسبوعين
منذ 3 أسابيع
