Fangrui Product Details 3-in-1 Probe: The Soil Moisture Meter Applies A 3-in-1 Probe That Can Read Soil Moisture, Soil Ph, And Light Level, At The Same Time, Which Is More Accurate And Simpler Than A Traditional Multi-probe Soil Tester. Meanwhile, The Two Probes Inserted Into The Soil Can Increase The Accuracy Of The Data And The Need For Frequent Testing, Thereby Reducing Damage To Plant And Making It A Reliable Plant Care Tool. 90 Rotatable Dial: With 3 Angles (0, 45, And 90), The Soil Moisture Meters Adjustable Readout Screen Eliminates The Need To Bend Down For Readings. Enjoy A Comfortable Viewing Angle While Comprehensive Into Your Plants. No Battery Required Reliable Results: The Soil Meter For Plants Is Battery-free And Easy To Store. You Only Need To Insert The Probe Than 2-4 Inches Into The Soil And You Get The Test Result Instantly.effective To Help You Prevent Overwatering, Ensuring Healthy And Thriving Plants. Please Note: To Accurate Readings, Avoid Immersing The Plant Moisture Meter In Water Or Any Other