The 4-in-1 plant monitor – this device leaves you in no doubt about optimal fertility, correct root humidity, light intensity and temperature! Simply insert the monitor into the pot with the plant to be monitored. With a smartphone a Bluetooth connection is made to the gadget. Through the app (“Flower Care”) you have access to the optimal growth factors per plant (a large database of plant names plus optimal growth factors is available for this) and a connection is made to the device. I have tested it, it works really well! You can get reports per period. There is a telephone helpline for people who cannot manage the installation well.
Here for sale for € 30 incl battery. Especially interesting for people with precious tub plants!