3-in-1 Water Quality Detection Pen – High Accuracy TDS & EC Meter for Household Drinking Water (0-9990ppm)

Say goodbye to guesswork and hello to crystal-clear confidence with the 3-in-1 Water Quality Detection Pen – your essential tool for ensuring pure, clean, and safe water every time. Whether you're sipping, soaking, or studying, this high-accuracy TDS meter delivers rapid, reliable readings of TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature—all in one smart, compact device.

🔍 Perfect for:

• Household drinking water

• Aquariums & fish tanks

• Pools & spas

• Hydroponics systems

• RO/DI filtration checks

• Wine brewing, labs & more

🌟 Features That Set It Apart:

✅ 3-in-1 Measurement
Get precise digital readings of TDS (0-9990 ppm), EC, and temperature—ideal for monitoring the purity of water or the health of your plants and aquatic life.

🔥 Automatic Temperature Compensation (ATC)
This clever little device adjusts for water temp variations (0-80°C), so you get consistent accuracy in every environment.

💤 Auto-Off Function
No more battery drain! The pen powers down automatically after 5 minutes of inactivity, extending your battery life and saving energy.

🕹️ Multi-Mode Conversion + Memory Recall
Easily switch between 4 display modes for TDS/EC readings. And the best part? It remembers your last-used setting, making repeat tests faster and easier.

📏 Digital Display – Easy to Read
With a bright digital readout, even beginners can interpret results with confidence. No confusing analog scales here!

🎒 Portable & User-Friendly
Fits in your pocket, backpack, or toolbox—ready to test water anytime, anywhere. Comes with a leather case for safe storage.

🧪 What's in the Box:

• 1x TDS-A1 Digital Water Tester

• 1x User Manual

• 1x Protective Leather Case

Keep your water crystal-clear and your peace of mind rock solid. Whether you're testing your tap or nurturing your next green project, this 3-in-1 digital water tester is your trusty sidekick for clean, safe, smart living.

💧 Test smart. Drink safe. Grow healthy.