Lutron PH-224S PH/ORP Meter

pH, mV, auto Temp. Cal.
pH/ORP METER
Model : PH-224S
* Measurement : pH, mV ( ORP ), Temp. ( via ATC Temp. probe )
* pH : 0 to 14.00 pH
* mV ( ORP ) : 1,999 mV.
* Temp. ( via ATC Temp. probe ) : 0 to 65 °C, °C/°F.
* LCD shows both pH and the temperature.
* ATC or manual Temp. compensation.
* Auto calibration for pH 4, pH 7 and pH 10.
* Hold button, REC button ( Max./Min. button ).
* Power : DC 9V battery ( 006P ).
* Optional pH electrode : PE-03, PE-11, PE-02, PE-08, PE-21, PE-06HDA, PE-04HD. PE-03K7
* Optional ATC probe, TP-07
* Optional ORP electrode, ORP-14.
* Optional pH buffer solution : PH-07, PH-04.