3-in-1 function: The soil tester can test soil moisture, pH value and sunlight level of plant (Design for testing soil only. Cannot be used to test any of other liquid)Accurate & reliable: Double-needle detection technology enhances the speed and accuracy of detecting and analyzing soil moisture and pH acidityEasy to read: Large and clear dial, including ten scales, plug and read; 1-10 (dry to moist); Light range: 0-2000 (low light to strong light); pH range: 3.5-8 (acidic to 8 basic)Easy to use: No batteries needed, just insert the sensor