MADE FROM PREMIUM MATERIAL: The moisture tester made from premium metal material, not easy to damage and long service life, help your plants grow healthy and strong WITH AUTOMATIC OPTICAL SENSOR: The plant care devices with automatic optical sensor, it can automatically turn off the singing alarm function at night, to accurately read the soil moisture to avoid over-watering or under-watering. Singing reminder function: The soil moisture sensor with chirping function, watering is necessary when it sings every 15 seconds, after inserting the probe into the wet soil, the singing function will stop, both for indoor or outdoor use easily know when to water for your plants UNIQUE APPEARANCE DESIGN: The soil moisture tester has a lovely bird shape, cute and adorable, not only can it accurately test soil moisture, but also can be used as a decoration, perfect gift for planting lovers LOW DAMAGE TO VEGETATION: Using this vegetation moisture tester is to insert the probe into moist soil, takes up little space and does not affect the normal growth of vegetation.