Portable Conductivity/TDS/Salinity Meter PH-520 (CAT#: STEM-OEM-0256-ZJF)

The Portable Conductivity/TDS/Salinity Meter is a compact and reliable device engineered for rapid on-site water quality analysis. It accurately measures conductivity, TDS, and salinity, making it a valuable tool in environmental monitoring, laboratory testing, industrial processes, and agriculture.
Accessories include: meter unit, CON-1 conductivity electrode, temperature probe, standard solutions, and a portable carrying case.

Conductivity
- Range: CON-1: 2 μS/cm~20000 μS/cm (Optional: CON-0.01, CON-0.1, CON-10)
- Accuracy: ±0.5% F.S.
- Resolution: 0.001, 0.01, 0.1, 1
- Calibration Points: 1 to 3 points
- Calibration Solutions: 10 μS/cm, 84 μS/cm, 1413 μS/cm, 12.88 mS/cm, 111.8 mS/cm
Temperature
- Range: 0~105°C / 32~221°F
- Accuracy: ±0.5°C / ±0.9°F
- Resolution: 0.1°C / 0.1°F
- Offset Calibration: 1 point, reading ±10°C
Other Specifications
- Temperature Compensation: 0~100°C, manual or automatic
- Temperature Coefficient: Linear (0.0~10.0%/°C), non-linear, pure water
- Reference Temperature: 20°C / 25°C
- Cell Constant: K = 0.1, 1, 10
- Hold Function: Manual or auto-endpoint
- Auto-Off: 30 minutes after last key pressed
- Memory: 100 data sets
- Communication Interface: USB
- Connector: 6-pin mini-DIN, 3.5 mm jack socket
- Display: Custom LCD (80×60 mm)
- Power Supply: 3×1.5V AA batteries or DC 5V adapter
- Battery Life: Approx. 150 hours (backlight off)
- Dimensions: 170×85×30 mm
- Weight: 300 g
- Package Size: 475×155×350 mm
- Gross Weight: 2 kg

1 to 3-point calibration with automatic standard recognition.
Electrode diagnosis for calibration point and factor feedback.
Supports linear/non-linear and pure water compensation modes.
Auto-temperature compensation and Auto-Read function for stable readings.
Setup menu includes auto-power off and other configurations.
Stores up to 100 data sets; USB interface for data transfer and charging.
Reset function restores default settings.

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