PC6 PRESSURE   CALIBRATOR : Pressure measurement range -1 to 1000 bar, 
Voltage and current   measurement, Accuracy 0.05%(FS), Resolution 0.01% (FS)
PC6 Pressure Calibrator PRO : Pressure measurement range -1 to 1000 bar, Voltage and current measurement and sourcingt, Accuracy 0.025%(FS), Resolution 0.001%(FS) or 6 Digits, Two wire Transmitter Simulation, Battery Life Up to 10 Hours fully charged

PC6-IS is the Intrinsically Safe : Pressure measurement range -1 to 1000 bar / 15,000 psi, Voltage and current measurement, Accuracy 0.025%(FS), Resolution 0.001%(FS) or 6 Digits, Two wire Transmitter Simulation, Battery Life Up to 10 Hours fully charged

PC6 Pressure Calibrator External Pressure Module (EPM) : The EPM has been developed to work in conjunction with the PC6 Pressure Calibrator to provide additional pressure ranges without incurring the full cost of extra calibrators. Accuracy 0.05%(FS), Resolution 0.01%(FS) or 5 Digits,