PH850-HF Portable pH Meter for Solutions containing Strong Acid or Hydrofluoric Acid

Apera PH850-HF Portable pH Meter Kit

Designed for measuring solutions containing strong acid, solutions containing hydrofluoric acid, and storage battery solutions.

Easy Calibration

Easy 1-3 points of pH calibration, automatically recognizing pH standards of 1.68, 4.00, 7.00, 10.01, and 12.45.

Built Tough

The IP57 water-resistant structure makes the meter ideal for use in harsh environment. The rubber sleeve protects the instrument from general impact and gives you a firm grip.

Large LCD Display

1. Stability icon. Take the reading when the smiley face stays on screen.
2. Icons for finished calibrations
3. Simultaneous temperature display

LabSen 831

LabSen 831 pH Electrode and MP500 Temperature probe, designed for measuring solutions containing strong acid or hydrofluoric acid.

Specialized Electrolyte

Apera's proprietary blue gel inner solution does not flow at all, which means it will never generate air bubbles. The electrode can work well even when being held upside-down. It is not only more convenient to use, but also improves the measurement accuracy by eliminating heat convection in the inner glass membrane.

HF glass membrane

The equipped Swiss LabSen 831 Glass pH Electrode adopts a special HF glass membrane, which is resistant to HF corrosion and is capable of measuring solution containing HF acid for up to 1000 times. (measurement time<1 minute, and HF concentration should be less than 0.1mol/L or 0.2% wt%)

Silver-ion-trap reference system

The combination of a Long-life reference system and a silver ion trap. The silver ion trap will absorb all the exuded Ag+, ensuring that there's no Ag+ in the reference electrolyte, and avoiding junction clogs caused by samples containing sulfides, proteins or TRIS buffer solutions.