The new Jofra HPC550/HPC552Ex family of handheld pressure calibrators offer deadweight accuracy. They are rated intrinsically safe for potentially hazardous locations. Each device has 16 pressure ranges from 25 mbar (0.35psi) to 700 bar (10,000 psi) with F.S. absolute, differential and gauge sensors, Each is also accurate to ±0.025% of reading at 0.01% F.S.