PH850-PW pH meter for pure water


Plus 19% MwSt. DE
SKU: 28APE190068 / AI5541 Categories: , , , Tag:

The PH850-PW from Apera Instruments is a handy and easy-to-use meter for the determination of pH, ORP (electrode sold separately e.g. 301Pt-C) and temperature. It is specifically designed for fast, easy and accurate pH measurement of low ion concentration solutions such as pure, distilled or deionized water. The included LabSen® 803 pH electrode features a unique L-type glass membrane and a movable sleeve that allows the infiltration rate of the electrolyte to be adjusted. It has an integrated temperature sensor, which enables automatic temperature compensation (ATC). The PH850-PW is protected by a silicone cover and is waterproof and dustproof (IP57), making it particularly well suited for field use, even in harsh environments.

  • Equipped with the LabSen® 803 pH/temp. electrode for pure water or distilled/deionized water
  • Silicone case provides safe & firm grip and protects from shocks
  • Waterproof and dustproof (IP57) for use in harsh environments
  • Fold-out stand for convenient indoor operation
  • Quick and easy 1- to 3-point calibration
  • Large, illuminated LCD simultaneously displays conductivity value and temperature, as well as additional measurement and calibration information
  • Self-diagnosis supports calibration or troubleshooting

The meter is RoHS and EC certified and has a 3 year warranty (6 months on the electrode).


LabSen electrochemical sensors are premium pH electrodes with manufacturing technology and key components from Switzerland. The LabSen802 pH electrode is suitable for measuring pure water such as drinking water, distilled water, etc.

This electrode has the following properties:

      • Impact resistant diaphragm, there is no risk of electrode rupture during normal use.
      • Movable sleeve that can adjust the infiltration rate of the electrolyte.
      • Blue gel electrolyte, does not flow and does not cause air bubbles.
      • The silver ion trap reference prevents contamination of the diaphragm when the test sample contains sulfides and proteins, which helps to improve the stability and lifetime of the electrode.
Measuring range (0 ~ 11) pH Electrolyte 3M KCl
Recommended operating temperature (0 ~ 80) °C Storage solution 3M KCl
Shank material Lead free glass Membrane resistance <50MΩ
Diaphragm type L Electrode dimension (Ø12×130) mm
Reference system Silver ion trap Connection S7
Diaphragm Movable sleeve Cable Ø3×1m


Technical Specifications

pH Measuring range 0.00 to 14.00 pH
Resolution 0,1/0,01
Accuracy ±0.01 ±1 digit
calibration 1 to 3 points, automatic
Temperature compensation 0 to 100 ° C (automatic or manual)
mV Measuring range ±1000 mV
Resolution 1 mV
Accuracy ±0.2 % F.S. ± 1 digit
Temperature Measuring range 0 to 100 °C
Resolution 0,1 °C
Accuracy ±0.5 °C ±1 digit
More Power supply 3 x AA batteries
IP rating IP57
Electrode connection BNC (for pH and ORP), RCA (for temperature)
Dimensions / Weight 88×170×33 mm / 313 g with case: 360×270×76 mm / 1.3 kg

scope of delivery

A complete set contains:

  • PH850 pH meter
  • LabSen 803 pH electrode
  • Calibration solution (pH 4.00 / pH 7.00 / pH 10.01; 50ml each)
  • Screwdriver
  • manual
  • Carrying case


German PH850 DE Apera LabSen803 DE
English PH850 EN Apera LabSen803 EN