Product

PRODUCT CATEGORY

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Easystat
A smart WiFi thermostat with precise control, remote app access, and intuitive design for a more comfortable, energy-
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Ace 2.0 Control System
Ace 2.0 is a simple full-function, as a master controller in each room
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DDC
HD series universal programmable controller is a new generation of network DDC designed for smart building automatic control system.Through various communication interfaces to support a variety of standard mainstream
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Motorized Ball Valve
BV03 series motorized ball valve is applicable to terminal of central air conditioning system and heating system
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Solution

RECENT PROJECTS

We provide a comprehensive intelligent building and energy management solution built on strong in-house R&D capabilities, over 300 patents, and internationally certified product reliability. With fully automated smart manufacturing and TÜV-verified quality control, our hardware portfolio—from DDC controllers, sensors, gateways, and thermostats to control valves—forms a complete, highly reliable system foundation.
Hotel Building Automation Solution | HaiLin Controls
Commercial building complex
Smart Laboratory Solution
Transportation and public facilities
HaiLin Industrial Park Building Energy Management Solution
Residential Community Solution
Data center
Smart Hospital Solution
About Us

HaiLin controls has established a complete service system.

At present, in China, HaiLin has more than 100 agents, and its marketing service covers more than 200 cities., exporting products to more than 60 countries including the United States, Europe, the Middle East, Australia, and South America.
  • 25 years+ manufacturing experience
  • Established a global standardized system covering R&D, manufacturing, and supply chain operations
  • Fully automated thermostat production with an annual capacity of over 2 million units.
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Case

CUSTOMER CASE

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Empowering Qinhuangdao Bovi Fortune Center Centralized Control Strategy and Practice for Water Thermal Storage Air-Conditioning Plant Based on Peak and Valley Electricity Pricing
During the 2022 Winter Olympics, the National Stadium “Bird’s Nest” served as the venue for the opening and closing ceremonies. Hailin Controls upgraded the stadium’s original heating thermostats to deliver more precise temperature control, improved energy efficiency, and stable indoor comfort throughout the event. Since first entering the Bird’s Nest...
Empowering Qinhuangdao Bovi Fortune Center Centralized Control Strategy and Practice for Water Thermal Storage Air-Conditioning Plant Based on Peak and Valley Electricity Pricing
Daxing International Airport
During the 2022 Winter Olympics, the National Stadium “Bird’s Nest” served as the venue for the opening and closing ceremonies. Hailin Controls upgraded the stadium’s original heating thermostats to deliver more precise temperature control, improved energy efficiency, and stable indoor comfort throughout the event. Since first entering the Bird’s Nest...
Daxing International Airport
Advantage

REASONS FOR CHOOSING US

  • Strong R&D and Technology Foundation
    300+ global patents and fully independent core technologies CMMI Level 3 certified, with internationally advanced software capabilities Early achiever of UL, CE, BTL, RoHS and other global certifications 100% localized main chips and components for DDC controllers Global-standard system covering R&D, manufacturing, and supply chain
  • Intelligent Manufacturing Excellence
    Industry’s first fully automated smart electronics factory National “Green Factory” certified Advanced SMT and automated assembly/testing lines Annual production capacity exceeding 2 million units TÜV Rheinland–witnessed lab with 18 testing capabilities; CPK > 1.66
  • Complete Product Portfolio & AI -Driven Solutions
    Full range: DDC controllers, gateways, sensors, thermostats, valves Software platforms including the HAI building management system Proprietary EBA energy-control system integrating AI for optimization Delivers 15%–30% building energy savings
  • Proven Track Record in Landmark Projects
    Solutions deployed in 2008 Beijing Olympics (17 venues) and 2022 Winter Olympics (13 venues) Key national projects: Beijing Sub-Center (650,000 m²) Xiong’an City Computing Center Beijing Daxing International Airport Verified 15%–25% energy savings in data centers, commercial complexes, and public buildings
Blog

THE LATEST NEWS

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News
On July 17, 2026
HVAC Controls Wholesale: How to Vet a China Manufacturer Before Your First Container Order
A structured 3-stage guide for HVAC distributors to evaluate Chinese manufacturers, including factory screening, quality control verification, sample testing, and commercial terms negotiation.
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News
On June 11, 2026
UL, CE and BTL Certified HVAC Controls: Why Certifications Matter for Global Distributors
Understand UL, CE, BTL, FCC, and RoHS certifications for HVAC controls. Market requirements by region, how to verify certificates, and common procurement pitfalls.
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News
On May 29, 2026
Fan Coil Thermostat Buyer’s Guide: 2-Pipe vs 4-Pipe Systems Explained
Learn how 2-pipe and 4-pipe fan coil systems affect thermostat selection. Includes valve matching, changeover logic, power options, and a project-type selection matrix.
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