- Accurate soil moisture detection: This portable hygrometer tester measures and monitors soil moisture with precision, helping you determine the optimal watering time and avoid under or over watering. - Easy to read display: Includes a humidity calibration chart and a color display with red, green and blue indicators for quick interpretation of soil moisture levels. - Reliable construction: Built from durable metal and plastic materials, designed to resist wear and tear for long term indoor and outdoor use. - Compact and portable design: 145 mm long, 30 mm wide and 35 mm tall, lightweight and easy to carry. Suited for use with small potted plants as well as large garden beds. - Use scenarios: • For indoor potted plants and herbs to fine tune watering schedules. • For outdoor garden beds to monitor moisture across different planting areas. • For greenhouses or seedling trays to verify moisture before transplanting.