The Circular chart pressure recorder has the capability of measuring and eventually, recording pressure in liquids and gasses. It is available for pressure ranges from - 1 to + 1000 bars (depending on the diagram used). It is equipped with a manometer that is made of a phospor bronze or stainless steel tube. It can be operated using a battery powered quartz clockwork movement (24 h, 7 days, 32 days), (4h, 6h, 12h, 24h, 7 days), or 230 V/50 Hz geared motor (6 hours, 12 hours, 24 hours, 7 days). Furthermore, it has a 1/2"G brass male output, an rigid polypropylene case with handle, and an optional connecting capillary tube and separator that are useful for corrosive and various products.