EC & TDS Digital Water Quality Tester

Water quality affects everything from plant growth to human health. But how do you know what's really in your water? The EC & TDS Digital Water Quality Tester puts professional-grade water analysis in the palm of your hand. Measuring electrical conductivity, total dissolved solids, and temperature simultaneously, this 3-in-1 device provides the data you need to optimize hydroponic nutrient solutions, maintain aquarium health, test drinking water purity, and more.

1. TDS – Total Dissolved Solids (0-9999 ppm)

TDS measures the combined content of all inorganic and organic substances contained in water. This includes minerals, salts, metals, and other particles. Use TDS readings to:

Check drinking water purity (lower TDS generally indicates purer water)

Monitor reverse osmosis system performance

Test tap water quality

Verify water filter effectiveness

Interpreting TDS Readings (ppm):

LevelQuality

0-50Excellent – distilled/RO water

50-150Good – acceptable for drinking

150-250Fair – may have mineral taste

250-500Poor – hard water, noticeable taste

500+Unsuitable – high dissolved solids

2. EC – Electrical Conductivity (0-9999 µs/cm)

EC measures water's ability to conduct electricity, which directly correlates to dissolved ion concentration. Essential for:

Hydroponics: Maintain optimal nutrient strength for maximum plant growth

Aquaponics: Balance fish waste and plant uptake

Greenhouses: Monitor fertilizer concentration

Soil Testing: Measure nutrient availability

Target EC Ranges for Hydroponics:

• Plant TypeIdeal EC (µs/cm)
• Leafy greens (lettuce, spinach): 800-1200
• Fruiting plants (tomatoes, peppers): 1400-2500
• Herbs (basil, mint): 1000-1600
• Strawberries: 1200-1800

Important Notes:

• Battery not included – requires 1 × CR2032 3V lithium coin cell
• Do not fully submerge the entire unit – only the probe end is waterproof
• Avoid measuring extremely hot liquids (>80°C / 176°F) as this may damage the sensor
• Rinse with distilled water after each use to prolong sensor life

Water Purity EC Meter Application:

1. Hydroponics
2. Drinking Water
3. Aquariums (Freshwater)
4. Aquariums (Saltwater)
5. Pools & Spas
6. Reverse Osmosis
7. Boiler Water
8. Cooling Towers

Quality Detection Pen Specification:

1. Measurements: EC, TDS, Temperature
2. EC Range: 0-9999 µs/cm
3. TDS Range: 0-9999 ppm
4. Celsius Range: 0.1°C – 80.0°C
5. Fahrenheit Range: 32.0°F – 176.0°F
6. Accuracy: ±2%
7. Display Modes: 4 (switchable)
8. Auto Shutdown: 5 minutes
9. Housing Material: ABS
10. Dimensions: 153 × 30 × 14 mm
11. Power:1 × CR2032 3V (not included)

Features:

1. 3-in-1 Functionality: Measures EC (0-9999µs/cm), TDS (0-9999ppm), and temperature (°C/°F) in one device.
2. High Accuracy: ±2% accuracy provides reliable, repeatable readings for professional and home use.
3. Multi-Mode Conversion: 4 different display modes – press shift to switch between TDS, EC, and temperature readings easily.
4. Automatic Shutdown: Powers off after 5 minutes of inactivity to preserve battery life.
5. Dual Temperature Units: Displays Celsius (0.1°C to 80.0°C) or Fahrenheit (32.0°F to 176.0°F).
6. Compact & Portable: Slim design at 153×30×14 mm fits easily in a pocket or toolbox.
7. Durable Construction: ABS housing resists impacts and moisture for long-term reliability.
8. Wide Measurement Range: Suitable for everything from pure water to high-concentration solutions.
9. Power: 1 × CR2032 3V battery (not included)

Professional Accuracy for Critical Applications

• With ±2% accuracy, this meter delivers laboratory-grade reliability for:
• Hydroponic nutrient management: Prevent nutrient burn or deficiency
• Aquarium health: Maintain stable conditions for fish and coral
• Drinking water testing: Verify filter performance and water safety
• Pool and spa maintenance: Monitor dissolved solids that affect water balance
• Industrial water treatment: Check process water quality
• Educational demonstrations: Teach water chemistry concepts
• Smart Features for Everyday Use

5-Minute Automatic Shutdown:

Never worry about draining the battery. If you forget to turn off the meter, it powers down automatically after 5 minutes of inactivity. This extends battery life significantly.

Compact, Pocket-Sized Design:

At just 153×30×14 mm, this tester slips easily into a pocket, tool bag, or glove compartment. Take it anywhere – from the greenhouse to the kitchen to the laboratory.

Durable ABS Housing:

The impact-resistant ABS plastic body withstands drops, splashes, and daily handling. It's built to survive the realities of workshop, farm, and field use.

Easy-to-Read Display:

The clear digital screen shows measurements in large, easy-to-read numbers. No squinting or guesswork – just precise data at a glance.