Senseca PRO 52x- Waterproof Conductivity Meter with Graphic Display

NEW IN 02.2026

• The PRO 521 and PRO 525 are top-of-the-range professional conductivity meters offering a wide range of features, high-grade robustness and user-friendly operation for safe and reliable use in water analysis applications.
  The PRO 525 has data logging capabilities. Its water, drop and impact protection make it a perfect choice for field use, and its integrated pop-up stand makes it ideal for laboratory use.
  The practice proven measuring cells of the several variants are the top choices for any application:
  -425 wide range for environmental and laboratory
  -200 high resolution pure water e.g. for filtering and deionization
  -210 glass platinum for colors, petrol, alcohol and similar.

Logging type:PRO 525 only: Automatic with manual start/stop
Temperature Input:via connected measuring cell
Measurement rate:1 meas/sClock:User-adjustable date and RTC function (max. drift 1 min/month @ 25 °C)
User interface:Multilingual (de, en, it, fr, es)PC connection:USB C
Power supply:4 x Alkaline AA cells (incl. in scope of delivery) External 5 V DC via USB C (power adapter or PC USB port)
Power consumption:18 mA typ.
Battery runtime:> 150 h typ. continuous operation (backlight off).
Auto power off:User configurable, automatically disabled if external power is connected
Housing material:Shock and impact proof, ABS, TPE (side protection), Polyester (front panel),
Operating conditions:-5 ... +50 °C; 0 ... 95 % RH (non-condensing)
Storage temperature:-25 … 65 °C (without batteries)
Display:140 x 160 dot-matrix LCD with backlight / visible area 42 x 50 mm, display of large-digit single values, statistical info (min/avg/max), chart view
Dimensions:170 x 78 x 38 mm
Standard functions:Acoustic/optic alarm, automatic power-off, Favorites menu
Data logger with read out via USB:yes
Extras:Foldable stand and magnet for flexible operation
Channels:BNC input for pH/ORP with connectors for integrated NTC or Pt1000 sensors
Protection degree:IP 67 IK 04