... ,Lab PH meter, ph tester, ph controller, digityal ph meter, digital ph monitorMicroprocessor PH mV Meters,Pen type ph meter,Lab PH meter,ph tester, ph controller, digityal ph meter, digital ph ... .00, pH6.86, pH9.18Temperature Compensation: 0 to 99 C,Manual or AutomaticDimensions: 210mm(L) 205mm(W) 65mm(H)Power: 9VDC ...