Soil PH Meter, Dr.meter 3-in-1 Soil Moisture/Light/pH Tester Gardening Tool Tester Kits for Garden Farm Lawn Planter… Price: $10.99 (as of 05/10/2022 17:47 PST- Details)

【3-in-1】tests moisture, PH value and light level using two 20cm probe and a light sensor
【High accuracy and Rapid respond】there are three calibration tables, you can respectively get the accurate value immediately
【No Battery Needed】Environmentally friendly because it needn’t any battery or electricity. Just plug in the probe to your object