Designed in house, the SCH4 connection head has found many industrial and HVac applications. 

The head will accept standard connecting blocks and most standard head mounting transmitters with 33 mm fixing holes

 It also has provision to fit a low cost plastic terminal block for HVac applications.

Moulded in general-purpose ABS plastic, the external fixing points provide a simple and rapid means of mounting sensors directly onto ducts, dispensing with the need for separate mounting plates.