Digital TDS & EC Water Tester Pen

Quickly measure total dissolved solids (TDS) and electrical conductivity (EC) in water with this compact digital tester. It is useful for monitoring hydroponic nutrient solutions, aquariums, and changes in tap or filtered water.

The pocket-sized design provides fast readings and is easy to keep with your gardening or water-testing supplies.

Specifications:

• TDS measuring range: 0–9999 ppm
• EC measuring range: 0–9999 µS/cm
• Stated accuracy: ±2% full scale
• Operating temperature range: 0–80°C
• Approximate size: 154 × 30 × 14 mm
• Approximate weight: 45 g
• Power: one CR2032 battery
• Colour: white

Important: This meter measures dissolved solids and electrical conductivity only. It does not identify specific contaminants, chemicals, bacteria, or pathogens, and it cannot confirm that water is safe to drink.