The advanced pH meter stands for precision, user-friendliness, and GLP compliance (Good Laboratory Practice). With a high-resolution LCD display, the pH meter provides a clear and concise presentation of measurement values. GLP compliance is ensured through automatic data recording and traceable documentation. It allows measurement of pH or redox value and temperature with external sensors.

- Fast, precise pH and temperature measurement

- Redox measurement (with optional electrode)

- GLP data management

- Easy 2, 3, 4, and 5-point calibration

- Calibration reminder

- Permanent Measurement Verification (PMV)

- Graphical display of measurement history

- Data logger

pH Meter PH 228

General Technical Data
Storage Medium	Internal memory
Storage Interval from	1 s
Storage Interval to	12 h
Storage Capacity	32 GB
Storage Capacity Additional Information	100 records with a maximum of 100,000 data points per record
Interface	USB-C
Menu Language	German, English, French, Spanish, Italian, Dutch, Portuguese, Turkish, Polish, Russian, Chinese, Danish, Japanese
Protection Class (Device)	IP52
Power Supply	5 V DC, 500 mA
Weight	252 g
Dimensions (L x W x H)	178 x 85 x 32 mm / 7 x 3,3 x 1,2 in
Operating Conditions	-20 ... 65 °C , 10 ... 95 % r.H
Storage Conditions	-20 ... 65 °C , 10 ... 95 % r.H
Languages of the Manual	German, English

pH
Measurement Range	-2 pH ... +20 pH
Resolution	0.001 pH
Accuracy	± 0.002 pH + 2 digits

Electrode
Designation	PE-03
Measurement Range	+1 pH ... +13 pH
Temperature Range	5 ... 60 °C
Application	Aqueous non-corrosive media
Reference Electrolyte	Ag/AgCl
Shaft Material	Epoxy resin
Shaft Length	160 mm
Shaft Diameter	12 mm
Cable Length	1 m

Redox
Measurement Range	-2000 mV ... +2000 mV
Resolution	1 mV
Accuracy	± 2 mV

Temperature Sensor
Minimum Temperature	-20 °C
Maximum Temperature	100 °C
Resolution	0.1 °C
Accuracy	± 0.5 °C (@ 20 °C)

pH Meter PH 228

Tech Specs

Tech Specs Redox & Temp.

General Technical Data