Completely waterproof. The battery compartment is sealed against accidental splashing or brief submersion under one meter of water. Measures EC (electrical conductivity), CF (conductivity factor), and PPM (parts per million) scales. High conductivity measurement range suitable for a variety of crops. Factory calibrated for reliable performance. Auto on/off function activates the meter when inserted into or removed from solution. If you use hydroponics to grow fruits and vegetables, you understand the importance of maintaining proper nutrient levels. This nutrient meter is quick, easy to use, and delivers accurate readings consistently. All measurements are displayed directly on the device—no need to consult additional resources. Simply dip the probe into your solution and read the results. Proper nutrient balance supports healthy plant growth and high-quality yields. Reads: EC (electrical conductivity) CF (conductivity factor) PPM (parts per million) Key Benefits: Easy-to-read LED indicator scale provides clear nutrient level information Accurate results with factory calibration; can be recalibrated using EC 1.4 buffer solution to maintain precision Automatically temperature compensated for consistent performance across varying conditions Fully waterproof design protects against water damage Extended battery life with auto on/off functionality Simple two-step process for taking measurements How to Use: 1. Insert the probe into the solution for 1–2 minutes to equalize temperature, then remove. 2. Reinsert the probe into the solution. The LED lights will display the nutrient concentration. 3. Rinse the probe and replace the cover. Features: - Fully waterproof construction - Measures EC, CF, and PPM - Suitable for high conductivity applications across diverse crops - Factory calibrated - Automatic power activation when placed in or removed from solution - No external knobs or switches - Includes step-by-step instructions - New and boxed Specifications: Range: - 0.4–5.2 EC - 4–52 CF - 280–3640 ppm (EC × 700) - 200–3000 ppm (EC × 500) Resolution: - EC: 0.1 - CF: 1 - PPM: 70 (×700), 50 (×500) Accuracy: ±4% Operating Temperature: 0–50°C (32–122°F) Automatic Temperature Compensation: 0–50°C Battery: 3 × AA (not included) Dimensions: 415 × 25 × 25 mm (16.3 × 1 × 1 in) Weight: 103 g (3.6 oz) Package Includes: 1 × Nutrition Meter 1 × User Manual 1 × Plastic Storage Box Note: Due to manual measurement, there may be a slight variation of 1–2 cm/inch in dimensions.