TES is a professional test instrument manufacturer dedicated to all kinds of hand heldequipment. Our goal is to provide top quality products to fit in each customer's needs.Our company was founded in 1988 with an initial gross investment of 1, 000, 000 USDand the products line was focused on low cost testers with basic functions.

We are manufacturing digital panel meter, power transducer, transmitter, measuring instrument ...

Develops, Production and sales of AC & DC Electronic Load, Automatic Power Supply Test Equipment, and Consumer Electronic products.

Since 1974 Welcome to Sunlight Electronics Laboratory ...

Costronic, the world leader in mini pci express ddr2 ddr3 pc/104 compactpci converter extender riser adapter debug card hardware prototyping development tools.