【Three-in-one Function】: This three-in-one Soil Tester of hygrometer, PH and photometer, and only need one instrument to realize three functions. 【Accurate Measurement】: The plant moisture meter dual-needle detection technology makes the monitoring data more accurate and won't harm plants, and the large digital dial is also equipped with a fine scale to reduce soil testing errors. 【Use is Simple】: Soil moisture meter, soil PH detection, Light level detection, just insert 2 / 3 of the sensor probe into the soil for plants, switch the switch to read, to ensure the accuracy can be inserted several more different positions to test, just wait a few minutes each time. 【Durable】: This Soil hygrometer does not need batteries and uses high quality materials, even if used outdoors and in the garden, no need to worry. 【Wide Range of Applications】: Our soil humidity meter is suitable for vegetable soil testing in various fields of family garden cultivation, vegetable cultivation, potted plants, flower cultivation, greenhouse cultivation, garden cultivation, agriculture and scientific research to meet your plant soil detection needs.