The PXJ-1C precision millivolt pH ion activity meter is a digital display precision secondary instrument that is used with various ion selective electrodes to accurately measure the electromotive force generated by various ions in a solution on the electrode. According to the Nernst equation, it can directly read the negative logarithm of ion activity in the solution; The instrument can also be used as a precision acidity meter and a high input impedance millivolt meter.

Technical indicators:
*Measurement range: mV: 0 to ± 1999.9mV
pH：0～14.000pH
pX：0～±19.999 pX
*Measurement accuracy: mV: 0.03% F · S ± 1 word
PH: ± 0.005pH ± 1 word
PX: ± 0.008pX ± 1 word
*Input impedance: ≥ 3 × 10¹²Ω
*Positioning range: 0 to ± 10.000pX
*Slope compensation: 80% to 110%
*Temperature compensation: 0-99 ℃
*Dimensions: 350 × 260 × 110 (mm)
*Weight: 3 kg
*Power consumption: 30 W

Usage conditions:
*Environmental temperature: 5 ℃~45 ℃
*Relative humidity:<85%
*Power supply: AC220V ± 22V 50Hz ± 0.5Hz
*No significant vibration
*No strong magnetic field

The instrument can be used in conjunction with various ion selective electrodes, reference electrodes, magnetic stirrers, universal electrode holders, etc. produced by our company.