Depending on the type of plants you grow, it helps to know what the humidity of the room is before adding any helpers such as extra humidity or heat.
These handy little hygrometers will measure the temperature AND humidity in your room, so you'll know what your room needs with just a quick glance!
We use one in every room that we house plants in (basically all of our rooms!).
Comes in black or white, with included battery.
45 x 45 x 14mmD
Please note, as with all electronic devices, we do not recommend you keep this in an enclosed prop box / tank etc, this can result in the electronics short circuiting and failing.
Because of this we cannot offer replacement due to improper use.