Soil Three-way Tester, 3-in-1 Plant Moisture , Light and PH Meter (demo)

We received today Soil tester from Vivosun three-way meter (Moisture/PH/Light). ● PH does not seem to be very accurate ● Light is not very useful for our application, so we intending to use it mostly as a moisture meter, as it is hard to evaluate how how wet is the soil as root level (6-8 inch deep) underneath the straw mulch. ● Device definitely shows good local sensitivity to moisture, so first impression as a moisture meter is positive.