TDS Meter Water Quality Testers

The RK-98301 and RK-98302 Digital TDS Meters are reliable instruments for monitoring Total Dissolved Solids (TDS) in water, helping ensure safe drinking water, efficient RO systems, and accurate water quality testing for industrial and commercial applications.

Both models are portable and lightweight (175 × 41 × 23 mm, 90 g) and powered by 4 × 1.5V AG13 batteries, making them convenient for field or laboratory use. They feature automatic temperature compensation (0°C to 50°C) for more accurate readings under varying conditions.

• RK-98301: Designed for low TDS measurement (0–1999 ppm), ideal for RO water, aquariums, and drinking water testing.

• RK-98302: Designed for high TDS / salinity measurement (0–19.99 ppt ≈ 20,000 ppm), ideal for seawater, brine, wastewater, and industrial applications.

Key Features:

• Measuring Range:

  • RK-98301: 0–1999 ppm

  • RK-98302: 0–19.99 ppt (~20,000 ppm)

• Resolution:

  • RK-98301: 1 ppm

  • RK-98302: 0.01 ppt (~10 ppm)

• Accuracy: ±2% of Full Scale

• Automatic Temperature Compensation (ATC): 0°C to 50°C

• Environment: ≤95% RH

• Power Supply: 4 × 1.5V (AG13 batteries)

• Dimensions & Weight: 175 × 41 × 23 mm, 90 g

• Portable, lightweight, and easy-to-use design

Applications:

• Drinking water TDS monitoring

• RO & water purification systems

• Aquarium and fish farming

• Hydroponics & agriculture water testing

• Seawater & salinity measurement (RK-98302)

• Wastewater and industrial process water monitoring

Product Benefits:

✅ Dual models available for low and high TDS ranges
✅ Ensures safe water quality for drinking and RO systems
✅ Compact, portable, and easy-to-use handheld design
✅ Automatic temperature compensation for accuracy
✅ Suitable for both domestic & industrial water quality testing