- Optimal price / performance ratio
- Real-time data logger
- SD card memory (1 ... 16 GB)
- The saved data is saved directly as an Excel file on the SD card (for evaluation, no software is required)
- RS-232 interface for online data transfer
- Measures pH value, redox, conductivity, salt content, oxygen, and temperature
- High precision
- Low battery display
- Large LC display
- Adjustable measuring rate
- Easy to use
- Robust housing
- Includes pH and conductivity electrode
- Automatic calibration
- Manual or automatic temperature compensation
- BNC connector
- Suitable for laboratory and on-site measurements
- REDOX and oxygen electrode optionally available
- incl. ISO Calibration Certificate

pH measurement
Measurement range	0 ... 14.0 pH
Resolution	0.01 pH
Accuracy	±0.02 pH + 2 digits
Calibration	3 points (pH 4, pH 7, and pH 10)
Temperature compensation	Automatic with additional temperature sensor (0 ... 60 ºC / 32 ºF ... 140 ºF) or manual (0 ... 100 ºC / 32 ºF ... 212 ºF)
Redox measurement (optional)
Measurement range	1999 ... 0 ... 1999 mV
Resolution	1 mV
Accuracy	± 0.5 % + 2 digits
Conductivity measurement
Measurement range	0 ... 200 µS/cm, 0.2 ... 2.0 mS/cm, 2 ... 20.0 mS/cm, 20 ... 200 mS/cm
Resolution	0.01 µS/cm, 0.001 mS/cm, 0.01 mS/cm, 0.1 mS/cm
Accuracy	±2 % of the measurement range + 1 digit
Calibration	1413 mS/cm
Temperature compensation	Automatic (0 ... 60 ºC / 32 ºF ... 140 ºF)
Total dissolved solids (TDS) measurement
Measurement range	0 ... 132 ppm, 132 ... 1320 ppm, 1320 ... 13200 ppm, 13200 ... 132000 ppm
Resolution	0.1 ppm, 1 ppm, 10 ppm, 100 ppm
Accuracy	±2 % of the measurement range + 1 digit
Temperature compensation	Automatic (0 ... 60 ºC / 32 ºF ... 140 ºF)
Salt content measurement
Measurement range	0 ... 12 % (of weight)
Resolution	0.1 %
Accuracy	±0.5 % of the measurement range
Temperature compensation	Automatic (0 ... 60 ºC / 32 ºF ... 140 ºF)
Oxygen measurement (optional)
Measurement range	0 ... 20 mg/l (in water), 0 ... 100 % (in air), 0 ... 50 ºC / 32 ºF ... 122 ºF
Resolution	0.1 mg/l, 0.1 %, 0.1 ºC
Accuracy	±0.4 mg/l, ±0.7 %, ±0.8 ºC
Calibration	In the air
Temperature compensation	Automatic (0 ... 50 ºC / 32 ºF ... 122 ºF)
Temperature measurement
Measurement range	0 ... 60 ºC / 32 ºF ... 140 ºF
Resolution	0.1 ºC
Accuracy	±0.8 ºC
Temperature compensation	Automatic (0 ... 60 ºC / 32 ºF ... 140 ºF)
General specifications
Measurement rate	1 second up to 8 hrs 59 mins 59 secs
Display	LCD 52 x 38 mm / 2 x 1.5"
Memory	SD card up to 16 GB (2 GB card included)
Interface	RS-232
Software	Optional
Power supply	6 x 1.5 V AA batteries (optional power adapter)
Operating conditions	0 ... +50 ºC / < 85 % RH
Dimensions	177 x 68 x 45 mm / 7.0 x 2.7 x 1.8"
Weight	490 g / 1.1 lbs