ETI Tds 4 EC meter - Conductivity splash-proof meter for Hydroponic nutrient strength testing. Manufactured by UK specialists ETI (Electronic Temperature Instruments) the standard yet reliable features make it THE most reliable and useful budget pocket nutrient strength meter available.

Cost effective, durable and easy to use, with high accuracy.

• Range 100–19900 μS/cm
• Resolution 100 μS/cm
• Accuracy ±2%
• Auto temperature compensation

These TDS EC Pen provide the ideal solution for measuring ppm or μS. The TDS testers are ideal for monitoring a variety of applications including the amount of salts or dissolved solids in water. The readings are automatically temperature compensated over the range of 0 to 50 °C.