3 In 1 Fun CtionThe 3 In 1 Plant Moisture Sensor Can Test Soil Moisture Light And Ph (Designed To Test Soil Only. Do Not Use To Test Pure Water Or Any Other Liquid)Premium Dual Needle Sensing TechnologyLet You Know When To Water Your Soil, Control The Ph Level, Determine If The Plant Is Getting Enough LightAccurate And InstantThis Improved Soil Meter Will Give You Accurate Readings Of Your Soil Condition Instantly, And The Digital Display Gives You A Chance To Closely Monitor Your PlantsPortable Soil TesterSmall And Handy, Easy To Carry. About 26 In Length, Lightweight, Suitable For Home Potted Plants, Also Suitable For Outdoor Testing, Small Space, Convenient To CarryEasy OperationOne-Button Switch, Quick Detection. After Removing The Protective Film On The Surface Of The Needle, Inserting The Soil Tester, Wait 10 Seconds To Read The Intuitive Data, Which Is Convenient And Quick. No Battery Needed