The 5301-B.5 Current Transducer, coupled with a tensiometer and a data logger will record in a linear range of 4 to 20 mA, 0 to –50 kPa. (0 to 7.25 psi). It is a 4 wire, solid-state, differential silicon shear stress/strain gauge. Fully temperature compensated and hermetically sealed for rugged field use. Operates between 0 to 60C, (32 to 140F), 0.25% linearity full scale.