AquaMaster E50 Pro EC & Temperature Meter – IP67 Waterproof | Hydroponic EC Pen

Know Your EC. Grow With Confidence.

The AquaMaster E50 Pro is a professional-grade EC and temperature pen meter that makes checking your nutrient solution fast, simple and accurate. Designed for daily use in hydroponics, aquaculture, water treatment and more — it gives you the numbers you need in seconds, every time.

It floats if you drop it, fits perfectly in your hand, and the replaceable electrode means this meter will keep going long after cheaper alternatives have given up. Batteries are included, so you're ready to test straight out of the box.

Why Growers Choose the E50 Pro

• ✅ IP67 fully waterproof — and it floats, so no more fishing meters out of the reservoir
• ✅ 1-point auto calibration — quick and easy at 1.4 EC
• ✅ Replaceable electrode — extend the life of your meter and save money over time
• ✅ Automatic temperature compensation — accurate EC readings from 0°C to 50°C
• ✅ Ergonomic rubber grip — comfortable to hold with a secure cap cord
• ✅ Battery indicator — always know when power is running low
• ✅ Auto power-off after 8 minutes — saves battery life without you thinking about it
• ✅ Batteries included — 3 × AG-13 button cells, ready to go

What It Measures

EC: 0.0 – 19.9 mS/cm | Accuracy ±2% F.S. | Resolution 0.1 mS/cm
Temperature: 0°C – 50°C (32°F – 122°F) | Accuracy ±0.5°C | Resolution 0.1°C

Full Specs

• 📏 Dimensions: 220 × 40 × 40 mm
• ⚖️ Weight: 102 g
• 🔋 Power: 3 × 1.5V AG-13 button cell batteries (included)
• ⏰ Auto power-off: after 8 minutes
• 💧 Waterproof rating: IP67
• 🔧 Calibration: 1-point auto at 1.4 EC
• 🧪 Electrode: Replaceable

Pair It With the AquaMaster P50 Pro pH Meter

For complete nutrient management, combine the E50 Pro with the AquaMaster P50 Pro pH & Temperature Meter. Together they cover EC and pH — the two most important numbers for keeping your plants happy and your nutrient solution dialled in.

The AquaMaster E50 Pro — a tough, accurate EC meter built for growers who want reliable results without the fuss.