Portable Water Hardness Meter PH-322 (CAT#: STEM-OEM-0260-ZJF)

The Portable Water Hardness Meter is a compact, easy-to-use device designed for quick and accurate measurement of water hardness. It provides real-time data on calcium and magnesium ion concentrations, making it ideal for household water testing, industrial monitoring, and field inspections.
Accessories include: water hardness electrode, temperature probe, standard solutions (10/100 mmol/L), ionic strength adjuster, and a portable carrying case.

Water Hardness
- Range: 0.05~200 mmol/L; 0~1122 °dH; 0~2000 °fH; 0~1404 °e; 0~8020 mg/L (Ca²⁺); 0~19999 mg/L (CaCO₃); 0~11220 mg/L (CaO)
- Resolution: 0.001, 0.01, 0.1, 1
- Accuracy: ±1% F.S.
- Calibration Points: 2 to 5 points (0.01, 0.1, 1, 10, 100 mmol/L)
Temperature
- Range: 0.0~105.0°C
- Resolution: 0.1°C
- Accuracy: ±0.5°C
- Offset Calibration: 1 point, reading ±10°C
Other Specifications
- Temperature Compensation: 0~50°C, manual or automatic
- Hold Function: Manual or auto-endpoint
- Auto-Off: 10, 20, or 30 minutes after last key press
- Memory: 500 data sets
- Communication Interface: USB
- Connector: BNC, 3.5mm jack socket
- Display: Custom LCD (80×60 mm)
- Power Requirements: 3×1.5V AA batteries or DC5V power adapter
- Dimensions: 170×85×30 mm
- Net Weight: 300 g
- Packing Size: 475×155×350 mm
- Gross Weight: 2 kg

Supports 2 to 5 points calibration from low to high concentrations.
Offers selectable water hardness units: mmol/L, mg/L, °dH (German), °e (English), and °f (French).
Automatic temperature compensation ensures accurate readings across the full measurement range.
Auto-Read function detects and locks the measurement endpoint.
Calibration due alarm reminds users to calibrate the meter regularly.
Auto-Power Off function helps conserve battery life efficiently.
Setup menu allows customization of calibration points, stability criteria, and other parameters.
Reset function restores the system to factory default settings.
Expanded memory supports storage and recall of up to 500 data sets.
USB communication interface enables data transfer or connection to a power adapter.

STEM-OEM-0258-ZJF
STEM-OEM-0259-ZJF
STEM-OEM-0261-ZJF
STEM-OEM-0262-ZJF