With our new leaf thickness sensor and the micro stem diameter sensor we can monitor smaller plant species or larger plants from the moment they are cultivated. These incorporate real-time temperature corrections for optimal accuracy. Several clip sensors are available depending on the type of plant culture. -LeafClip, this measures the thickness of the leaf between 0-2mm. -StemClip Small, this one measures the diameter of the stem between 1-2mm. -StemClip Large, this measures the diameter of the stem between 2-6mm. Each PhytoClip system supports x2 clip sensors of choice.