Specifications

pH             Measuring range         : (-2.00 ~ 19.99)pH

               Resolution              : 0.1/0.01 pH

               Accuracy                : ±0.02 pH

               Input current           : ≤2×10-12 A

               Input impedance         : ≥1×1012 Ω

               Stability               : ±0.01 pH/3h

               Temp compensation       : (0 ~ 100)? (automatic)

mV             Measuring range         : -1999mV ~ 0 ~ 1999mV

               Resolution              : 1mV

               Accuracy                : ±0.1% FS

Others         Data storage            : 200 groups

               Storage contents        : Series number, measuring value, measuring unit and temperature

               Power                   : Two AA batteries(1.5V)

               Size & Weight           : 160×90×30mm/360g (instrument)

                                         480×300×60mm/1KG (with packing)

               Quality certificates    : ISO9001, CE

Working        Ambient temperature     : (5 ~ 35)?

Conditions     Ambient humidity        : ≤85%

               IP grade                : IP57