Optimal Measurement Practices Insert probes two thirds into moist soil for consistent results Avoid extremely dense or sandy soil types Keep probes clean after each use to maintain consistent Six Function Soil Tool This advanced soil measurement device quickly assesses levels, acidity, nutrient content, light exposure, temperature and surrounding humidity within 6 seconds, providing complete data for home gardens, greenhouses and farming needs High Accuracy Interchangeable Probes Features three long lasting metal probes with excellent conductivity for rapid and acidity readings Individual probes can be replaced when needed without purchasing a new unit Strong & Portable Construction Made from sturdy materials with compact 27x7cm dimensions, this handheld soil tool is built for prolonged use in various gardening and cultivation settings Easy to Use & Adjustable Design Simply activate all measurements with a straightforward control, displaying results on a readable screen The flexible 0 90° probe design reduces strain during gardening tasks, Manufacturer: Ahmany