The Low Pressure Calibrator is a low-pressure source that can be readily adjusted and stabilised. This hand pump has a pressure capacity of 5.8 psi, utilizes air as the medium, and can quickly and steadily regulate the pressure. It is made up of quick connections that allow for speedy instrument connection and disconnection. To reduce the heat impact during micro-pressure calibration, the pump features a heat-insulator between the cover and the pressure chamber. The adjustable resolution can be as low as 0.01 Pa. The Low Pressure Calibrator is perfect for calibrating pressure transducers, precise pressure gauges, and other pressure instruments because of aforementioned qualities.