Features: Digital positioning system for the J4CS electric actuators. 0-20mA, 4-20mA, 0-10V or 1-10V input/output options available. Can be retro-fitted to existing J4CS actuators. Also comes complete w.ith installation instructions. Can be set to fail open or fail close on loss of control signal. A fail freeze option is also available but it requires the interface system kit fitted to the J4CS electric actuator. Both the DPS and BSR kit can be installed together to provide failsafe and modulating functionality.