Catalog > Internet of Things (IOT) Related Products > More Platforms Pen Type PH Meter Pen Type PH Meter PH-220 LUTRON PEN TYPE PH METER IP65 (Batteries Not Included 4 x AA) Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Separate pH electrode, easy for general purpose and remote measurement. 0 to 14.00 pH. Auto calibration for pH 4, pH 7 or pH 10. Temp. adjustment is not necessary. IP-65 water proof. Pen type, easy carry out. Complete set with separate pH electrode (PE-11) and pH 4, pH 7 standard solution. Build in reverse display button. DC 1.5V battery (UM-4, AA) x 4, long life. Downloads PH-220 (1) PDF File 92.71 KB