Rhizon Soil Moisture Sampler, 40mm Needles, Pkg. of 10
For Frequent Sampling of Small Volumes of Soil Moisture
40mm Needles for use with syringe used to extrract soil samples. Samples are taken directly using a syringe. Ideal when measuring for pH because there is no CO2 loss in the sampling process.
Syringes are sold in sets of 10, complete with adaptor and retaining cap. 40mm.