This 3 in 1 nutrient meter dipstick is the fastest & easiest way to measure the nutrient strength in your nutrient reservoir. It provides highly accurate results for EC (Electricity Conductivity), CF(Conductivity Factor) and Total Dissolved Solids (TDS) (PPM or parts per million). Reading is instantly displayed on an intuitive waterproof flashing analog LED lights scale. Features: Waterproof Measure EC (Electricity Conductivity), CF (Conductivity Factor) and PPM (parts per million) in one stick High conductivity measurement Easy to use, no external knobs or switches Automatic Power On / Off Built-in with Automatic Temperature Compensation (ATC) Factory calibrated Specifications: Measuring range: CF: 4~52CF EC: 0.4~5.2EC TDS: 280~3640ppm (EC x 700) TDS: 200~2600ppm (EC x 500) Resolution: CF: 1CF EC: 0.1EC TDS: 70ppm (700 conversion factor) TDS: 50ppm (500 conversion factor) Accuracy: ±4% of reading Automatic Temperature Compensation:0~50°C (32~122°F) Operating Temperature: 0~50°C (32~122°F) Power Supply: 3 x 1.5V AA Batteries (Included) Size: approx. 415 x 23 x 23mm Weight: approx. 179g Set Includes: 1 x Waterproof 3-in-1 CF / EC / PPM Stick 3 x 1.5V AA Batteries English Quick Start Guide Standard Factory Package
