Features: 3-In-1 Multifunctional Tester: Capable to measure soil EC, soil moisture and soil temperature and ambient temperature, much more practical. Digital LED Display: Large LED screen display with backlight for easy reading of values even in the dark. High Precision Probe: Made of selected steel, rustproof & electrolytic resistant & acid and alkali corrosion resistant, ensuring long-term operation and suitable for all kinds of soils. Detachable Probe: Practical design for easy carrying and convenient replacement of probe. Long Battery Life: Powered by 3 * 1.5V battery (NOT included), low power consumption & long service life, with low power prompt. Wide Application: Suitable for various soil detection, applicable to greenhouses and researches of rice, vegetables, orchards, flowers, soil, etc. Specifications: Model: YY-1000 / YY-1000N (Optional) Material: ABS + alloy Color: Black Power Supply: 3 * 1.5V button cell (NOT included) Measuring Range: Soil EC: 0.01~20.00mS/cm Soil Moisture: 0.1%~99.9% (technology) Soil/Ambient Temperature: -30C~+80C, 22F~176F EC Calibration: support two-point calibration (1413us/cm, 12.88us/cm) Humidity Calibration: it cannot be calibrated, it has been calibrated before leaving the factory. Item Size: Approx. 210*45*35mm / 8.27*1.77*1.38in Package Size: Approx. 22.5*5.2*5.2cm / 8.86*0.2*0.2in Package Weight: Approx. 152g / 5.36oz Note: When measuring, the steel needle must be completely inserted into the soil for accurate measurement. Packing List: 1 * Soil Tester 1 * User Manual (English)