We having been using this little device to measure the monitir our plants. It has been very helpful in helping us to keep our plants at the right moisture and in the proper lighting. We've only had it s short while but it is making s difference in a few of the plants already. We had one plant that was not doing well bcuz it was too moist and not getting enough sun, while another one was not thriving bcuz it was too dry. This little device pinpointed those issues so we were able to correct them quickly. Now both plants are doing much better!
I highly recommend this nifty little device.