Máy đo PH lutron PH-209B
* Professional pH/mV METER. pH range : 0 to 14 pH x 0.01 pH mV range : -1000 mV to 1000 mV. Recall be saved and retrieved by record function.
* The instrument is with mV ( millivolt ) function for mV measurement ( cooperate with optional ORP probe to be a professional ORP meter)
