TrolMaster WN-9 Substrate Sensor Node | 3-in-1 Expansion Probe for WCS-9 System EC Management The bottle is made of

The bottle is made of Polyethylene (PVC and cadmium free)

Complete Custom Flexibility

The balanced ratio of nitrogen supports structural cell development and green leaf canopy growth during the vegetative phase

Lined with a 500G light-proof layer

easy-to-read digital display for low-light grow room environments

TrolMaster WN-9 Substrate Sensor Node | 3-in-1 Expansion Probe for WCS-9 System EC Management The bottle is made ofProduct Overview The TrolMaster WN 9 is the dedicated sensing engine behind the revolutionary WCS 9 system. Engineered for professional cultivators who refuse to rely on single point data, the WN 9 is a professional grade 3 in 1 measurement probe designed to capture hyper accurate root zone metrics. Whether you are working with traditional soil or high bulk EC soilless substrates, the WN 9 provides the verified data required for elite crop steering