HS318 Electric Comparator adopts gas push principle and features fast pressurizing, labor saving, time saving, good air-tightness and easy operation. It is easy to be used in different calibration works. Please read the user manual carefully before using this equipment. Functions HS318 is an ideal solution in the laboratory for calibrating pressure transmitters, pressure gauges, pressure switches & other industrial pressure instruments. Characteristics . Fast stability, labor saving, simple operation . Small size, light weight . Non-leaking, convenient clean . With pre-pressurizing function Technical Specification . Pressure Range: (0~600) bar . Working Media: Transformer oil . Output Interface: M20×1.5 Female . Dimensions (L×W×H): 500mm×350mm×135mm . Weight: 16Kg