Reliable Refrigeration Controller for OEM & ODM Projects

Match premium-brand performance, with full customisation and lifetime technical backing.

Benchmarked against leading international thermostat solutions

Custom hardware, firmware & face-label available

Long-term technical support for your mass-production

Explore Series Get In Touch
KY-533 digital temperature controller
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3-Stage Quality Check
Every unit passes initial inspection, re-inspection & aging test.
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Years in Business
Over a decade designing & manufacturing refrigeration controllers.
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Trusted by Global Clients
OEM/ODM partners across Asia, Europe & the Americas.
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Units Shipped Annually
Stable supply chain with consistent on-time delivery.

Rooted in Zhejiang’s Biggest Commercial Refrigeration Hub

  • First-hand refrigeration engineering experience
  • Professional whole-unit integration & testing

With over a decade of hands-on commercial refrigeration experience, we don’t just build controllers — we understand how every part of a refrigeration system works together. Our in-house engineering team conducts full system integration testing, ensuring every controller performs reliably in real-world cabinet environments.

Kaiyuan Electronic factory building in Zhejiang Kaiyuan Electronic production workshop

Product Series

KY-533 integrated temperature controller
Integrated Series

KY-533

One-piece panel-mounted controller with built-in display, sensor and relay. Quick, clean installation for upright freezers and display coolers.

  • 110-220 VAC 50/60 Hz
  • Cutout 71.5 × 30 mm
  • -45~60°C/ -40~99°F
View Details
KY-566 split controller with KY-Power box
Split Series

KY-566

Separate display head and power box for flexible mounting on walk-in cold rooms and larger refrigeration systems.

  • 110-220 VAC 50/60 Hz
  • Cutout 71.5 × 30 mm
  • -45~60°C/ -40~99°F
View Details

Applications

Designed for Commercial Refrigeration Equipment

Supermarket refrigeration display cases

Supermarket Refrigeration

Glass-door and open display cases for drinks, dairy and frozen food.

Commercial kitchen refrigerators

Kitchen Refrigerators

Reach-in fridges, freezers and prep tables for hotels and catering.

Convenience store coolers

Convenience Stores

Drink coolers and ice-cream freezers that run all day.

Cake display refrigerator in a bakery

Bakery & Cake Shops

Cake Showcase that keep desserts fresh and presentable.

Trusted by Buyers

Already Working in Commercial Refrigeration Production

From domestic brand supply chains to overseas OEM projects —here is where Kaiyuan controllers are in production today.

Domestic · Brand Supply Chain

Built into Leading Appliance Lines

Our integrated and split controllers are installed in commercial refrigeration equipment supplied to leading Chinese refrigeration and appliance brands.

In production · domestic OEM
Overseas · Scale Project

120,000-Unit Program · Indonesia

Supporting a large-scale refrigeration program in Indonesia through our export partner —Kaiyuan controllers proven at regional volume.

Via export partner
Overseas · Long-Term

India OEM Partnerships

Steady EXW supply, export documentation and responsive technical support for importers and OEM customers in India.

Multi-year relationship

Let's Build Your Refrigeration Project

Contact our team for product selection, custom OEM solutions, and competitive pricing. We respond within 24 hours.

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