◆ Features ♣ Touch Key Control ♣ Splash Proof Front Panel ♣ Electrode Offset Recognition ♣ Electrode Slope Recognition ♣ NBS Buffer Recognition,4.01,7.00,10.01 ♣ Isopotential Point Could Be 7.00 Or 6.86 Specify When Ordering ♣ Stored In Buffer T.C. ♣ Automatic Slope Calculations ♣ Flame Retardant Rugged Plastic Case ♣ 0.1 mV Resolution Over Wide Range For Ion Analysis ♣ Seven Error Indicators ♣ Easy To Use ♣ 50 Hz,60 Hz Rejection ♣ Manual And Automatic Temperature Compensation ♣ 0.56 High Efficiency Red LED ♣ Audio Feedback For Touch Keys And Error Indicators ◆ Primary Specs Range / Resolution / Accuracy ♣ pH ; 0 ~ 14.00 pH / 0.01pH / ± 0.1% ♣ ORP ; -2047 ~ 2047 mV / 1 mV / ± 0.05 ♣ ORP( E ) ; -409.5 ~ 409.5 Emv / 0.1 mV / ± 0.05% ♣ Temp. ; -10 ~ 125 °C / 1 °C / ± 0.5