HOLYKELL is a leading instrument and measurement manufacturer for over 30 years. The main products include various pressure sensors, liquid level sensors, temperature sensors, flow meters, etc.In the latest petrochemical industry, our latest products have the advantages of small size, resistance to temperature changes, high stability and reliability.The factory has passed ISO9001:2015 international quality management system certification. The purification workshop covers an area of 5,000 square meters, with 1 fully automatic production line and 2 semi-automatic production lines, and a modern office of 1,000 square meters. The annual production capacity exceeds one million sensors.HOLYKELL has a number of national patents. The main products have passed CE, RoHS, ATEX, and FCC certifications for the EU and North American markets. HOLYKELL has more than 120,000 customers worldwide, and its products are exported to 175 countries in Europe, America, Australia, Africa, Southeast Asia, and Asia. Our mature and advanced production process and technology can ensure the safe, stable and long-life operation of your project.