Marine Economic Development Demonstration Zone, Wenzhou City, Zhejiang Province, China
What Happens to a Smart Breaker or Smart Energy Meter After a Power Outage? A power outage does not affect every part of a smart electrical system in the same way or at the same speed. In most cases, the device powers back up first, its protective function returns immediately, network connectivity comes back later, […]
The EU trademark “tongou” (Registration No. 018630309) is owned by Changyou Technology (Zhejiang) Co., Ltd. We position ourselves as providers of intelligent product solutions for high and low voltage electrical systems, taking on solving customers’ pressures and challenges as our responsibility and creating value for them. We utilize intelligent products to serve global customers, making life smarter and more convenient to benefit your life.
Marine Economic Development Demonstration Zone, Wenzhou City, Zhejiang Province, China
Sales: [email protected]
After-sales: [email protected]
© 2026 Changyou Technology. All Rights Reserved.
English
Русский
Español
Français
Deutsch