Ralston Instruments stands as a beacon of American ingenuity and craftsmanship in the realm of pressure calibration. With over four decades of experience, the company has cemented its reputation for producing precision equipment that streamlines and enhances the reliability of pressure testing, maintenance, and repair processes across a myriad of applications. Originating from the inventive spirit of Doug Ralston in 1969, the company has consistently pushed the boundaries of innovation. From introducing the pioneering handheld pneumatic pump to developing the groundbreaking hydraulic hand pump, Ralston Instruments has revolutionised the way industries calibrate pressure instruments, embodying the essence of ‘Made in the USA’ with every product they create.

At the heart of Ralston Instruments’ ethos is a commitment to innovation and quality, showcased by their latest advancement: the fully integrated system of Quick-test™ hoses and adapters launched in 1993. This ingenious solution, designed for secure and efficient connections to a variety of devices under test, reflects Ralston’s dedication to facilitating seamless and accurate pressure calibrations. The company’s product range, all manufactured within the United States, encompasses hand pumps, compressed gas control devices, and comprehensive calibration kits, ensuring that Ralston Instruments remains synonymous with reliability and precision in pressure calibration. As the company continues to operate from its green headquarters in Newbury, Ohio, it upholds the Ralston Way, blending traditional family values with cutting-edge technological advancements to serve industries globally.