ActronAir NT-SBK NEO Side PCB Kit adds current-generation wireless capability to NEO Touch master wall controllers manufactured before May 2022, bridging the older controller's internal signalling so it can pair with current NEO sensors and wireless zone controllers. Fitting the side PCB avoids replacing the entire master wall controller when upgrading an older NEO Touch system. Fit the 100% Genuine ActronAir NT-SBK for a guaranteed match — confirm your controller's manufacture date with our team before ordering. Isolate power at mains before installation — live work on electrical components is dangerous and must only be performed by a qualified technician.