ASC-400 is a portable process signal calibrator that provides the functionality and accuracy you expect from a laboratory calibration system, but compact enough to fit into the tool box and be operated with one hand for easy field calibration. The ASC-400 is more than just a signal calibrator. Combined with our APM external pressure modules or our dry-block calibrator, it will calibrate pressure and temperature. The full numerical keypad with a series of function keys and the cursor keys, provide a simple and quick user interface. The new full color display offers the best visibility and overview. The high accuracy of ASC-400 has not been achieved on account of fragile measurements or source circuitries, the ASC-400 has fuse less protection – no lost replacement fuses!