[ ACCURATE TO] Excellent detection Technology strongly enhances the speed and accuracy of detecting and analyzing soil, promote plant growth in a way [ SCIENTIFICALLY ACCURATE] Sensitive probe could changes of the soil and transfer to the conductor, displaying the accurate values for you [ NO BATTERIES NEEDED] Indoor or outdoor use Self-powered no-battery need, help your grow and strong [ SUITABLE FOR] This soil kit can soil of, quickly helps you to know the soil condition and do for better care [ INDOOR & OUTDOOR USE] Design to be lightweight and portable, easy to carry around for outdoor use, ideal soil tool kit for home, garden, and farm, Manufacturer: Veltros