6-in-1 soil detector with six functions: soil fertility detection; soil acid-base detection (pH); soil temperature detection; soil moisture detection; light detection; air humidity detection. Precise digital display shows readings clearly, for example temperature 23.3 C and light 1877.2 LUX. Rotatable design allows 90 degree rotation for easy detection and viewing from different angles and positions. Battery powered by No. 7 dry battery for portable operation. Benefits: helps you accurately grasp soil fertility and environmental conditions, supports informed watering and fertilization decisions, and aids plant health monitoring for gardens, farms, and research projects. Use scenarios: - Home garden or balcony plants: monitor soil and light conditions to optimize care. - Farm, greenhouse, or field: data collection for crop management and irrigation planning. - Educational or research setting: simple soil environment studies and experiments. This six-in-one detector provides reliable data for gardeners, farmers, and researchers.