KY-533 All-in-One Temperature Controller

KY-533 is Kaiyuan's flagship all-in-one integrated controller, combining display, external NTC probe and built-in relay in a single panel-mounted unit. It controls refrigeration, fan, defrost and lighting outputs, and installs quickly and cleanly into a standard 71.5 × 30 mm cutout.

Built for undercounter kitchen refrigerators, supermarket display cases, island freezers and worktop refrigeration units, it is a first-choice platform for OEM and ODM projects.

Like all Kaiyuan controllers, it supports custom hardware, firmware and face-labelling, backed by long-term technical support for mass production.