Humidity meter. Green. Size L

Humidity meter. White. Size L. This practical watering system tells us the level of humidity in the substrate of our bonsai tree. Thanks to this device, we can easily see when we need to irrigate.

The watering indicator is very easy to install. Just insert it up to the mark in the bonsai’s substrate. The colour indicator will change based on the humidity detected in the substrate. It can take from 3 to 25 minutes for the device to change to the colour blue after watering.

Features:

- Easy installation.

- It is the first household humidity tester with pF (available water capacity) indicator

- The irrigation indicator is ideal for use in pots with a minimum of 10.5 cm in height or in pre-bonsais or specimens.

- It can be used in many types of substrates.

- No batteries needed. Very respectful of the environment.

- The indicator tells you when to water.

- It can last for 6-9 months.