It is a digital tension gauge with built in high performance converter.
It is compatible with both a load cell type tension detector and a pick-up type (LVDT) tension detector. 

It is a load cell type digital tension gauge.  
Being small, it allows easy utilization of space, and can be simply set.

It outputs precise voltage and current at the same time for inverter control.

The PTC-303D is a digital automatic tension controller to control power brake and clutch automatically.  

Digital Tension Controller, a model which controls the powder brake or the powder clutch after reading the load cell, pickup, and differential pickup sensor values.​ 

Digital Tension Controller, a model which controls the powder brake or the powder clutch after reading the load cell, pickup sensor values.

PR-DTC-4000CP has a built-in power (SMPS). 

Digital Tension Controller, a model which controls the powder brake or the powder clutch after reading the load cell, pickup sensor values. 

Digital Tension Controller, a model which controls the powder brake or the powder clutch after reading the load cell, pickup sensor values.