
RT-203 Digital TDS/EC/Temperature Meter – 3-in-1 Water Quality Tester
The RT-203 Digital TDS/EC/Temp. Meter is a 3-in-1 water quality tester that measures TDS (0–9999 ppm), Conductivity (0–9999 µS/cm), and Temperature (0.1°C–80°C / 32°F–176°F) with ±2% accuracy. Compact, lightweight, and easy to use, it is ideal for RO systems, drinking water, aquariums, hydroponics, and industrial water testing.
The RT-203 Digital TDS/EC/Temperature Meter is a versatile and portable device designed for accurate water quality measurement. It combines three essential testing parameters into one unit – TDS (Total Dissolved Solids), EC (Electrical Conductivity), and Temperature – making it ideal for a wide range of applications.
With a measuring range of TDS: 0–9999 ppm and Conductivity: 0–9999 µS/cm, this meter ensures precise monitoring of water purity. The temperature measurement range of 0.1°C–80°C (32°F–176°F) makes it suitable for both residential and industrial environments.
Compact in design (154 × 30 × 14 mm, only 55 g), the RT-203 is powered by a 3V battery, making it highly portable and convenient for daily use in RO systems, drinking water, aquariums, hydroponics, labs, and water treatment plants.
Key Features:
3-in-1 Function: Measures TDS, EC, and Temperature
TDS Range: 0–9999 ppm
Conductivity Range: 0–9999 µS/cm
Temperature Range: 0.1°C–80°C / 32°F–176°F
Accuracy: ±2% F.S.
Resolution: µS/cm
Compact & Lightweight: 154 × 30 × 14 mm, 55 g
Power Supply: 3V battery
Portable handheld design for on-site testing
Applications:
RO water system testing
Drinking water quality monitoring
Aquariums & fish farming
Hydroponics & agriculture water testing
Laboratory and industrial water testing
Swimming pools and spas
Product Benefits:
✅ Combines TDS, EC, and Temperature measurement in one device
✅ Ensures safe drinking water & healthy aquariums
✅ Helps optimize RO and hydroponics systems
✅ Portable, lightweight, and easy to use anywhere
✅ Accurate ±2% readings for professional and personal use



