KL-009(II) High Accuracy Pen-type pH Meter Model KL-009（II）pen-type pH meter uses combined pH electrode of high sensitivity, fast response, and good repetition as probe. With 31/2 liquid crystal digits display, the meter is reliable, stable, portable, and convenient to operate, especially for field measuring. It is praised by home and aboard. This product has been exported in batches. Technical Specification: Measuring range:0.00~14.00PH Accuracy:+/-0.1PH Resolution:0.01PH Operating Temperature:0℃~50℃ Automatic Temperature Compensation:0℃~50℃ Plug:Fixed Electrode BNC Power Supply:4x1.5V(AG13) Dimensions:170x36x23(mm3) Weight:85g 105g