Founded in 2004, Beijing Passion Technology Co., Ltd. (PAS) is a leading provider of electrical parameter isolation and measurement solutions. Through years of rapid growth, PAS has established an integrated production system, R&D center, quality assurance framework, and a highly skilled sales and customer support team. All employees undergo rigorous technical training, enabling strong capabilities in R&D, manufacturing, and sales.

In 2006, PAS obtained ISO9001 quality management system certification and has maintained strict compliance ever since. Certain product lines have also earned CE and RoHS certifications for both domestic and international markets. PAS masters multiple electrical detection technologies and holds several patents in areas such as electromagnetic isolation, Hall zero-flux, fluxgate, and flexible Rogowski coil technologies.

The PAS product series includes digital communication current sensors, Hall-effect current sensors, Hall-effect voltage sensors, current transmitters, voltage transmitters, power transmitters, leakage current transmitters, switching value transmitters, and smart power transmitters.

With over a decade of experience in fluxgate current and voltage sensor technology, PAS's digital communication current sensors (supporting CAN BUS and MODBUS), along with the ultra-high-precision HPIT and FV series, deliver outstanding advantages in high-accuracy measurement applications. These products are increasingly used in medical equipment, new energy, energy storage, and HVDC transmission.

PAS offers highly reliable and safe current and voltage sensors and transmitters. The current sensors cover a measurement range from 0.005 A to 20,000 A, with accuracy options from 1% down to 0.001%. The voltage sensors measure from 10 mV to 10,000 V, with accuracy options from 1% down to 0.1%.

Additionally, PAS provides OEM and ODM services, which have been well received by customers and give the company a competitive edge in an increasingly dynamic market.