Featured Ozone & IAQ Controllers
Explore our flagship smart controllers engineered for precise gas sensing, real-time threshold detection, and automatic relay switching in heavy commercial and industrial settings.
1. Industrial Overview: The Critical Need for Ozone Controllers with Relay Output in Thailand
Thailand’s rapid industrial transformation—spearheaded by the Eastern Economic Corridor (EEC) initiatives across Chonburi, Rayong, and Chachoengsao—has elevated the demand for intelligent gas monitoring and safety automation. Ozone (O3) is widely recognized as one of the most powerful oxidizing and disinfecting agents available today. From HVAC sanitation in Bangkok’s high-rise office towers to wastewater treatment facilities in Industrial Estates, ozone serves a paramount role in modern process engineering.
However, ozone’s extreme reactivity presents a double-edged sword. While low levels of ozone effectively neutralize mold, bacteria, viruses, and volatile organic compounds (VOCs), excessive atmospheric or dissolved ozone concentrations present severe health risks to personnel and can accelerate material degradation. This is where an Ozone Controller With Relay Output becomes essential for modern industrial and commercial operations across Thailand.
An ozone controller with dry-contact relay outputs acts as an autonomous hardware safeguard. When ozone concentrations cross safe operational thresholds (e.g., OSHA's 0.1 ppm limit), the relay instantly triggers external interlocks—automatically cutting power to ozone generators, starting emergency exhaust ventilation systems, illuminating visual strobe alarms, or sending trip signals to central Building Management Systems (BMS) via Modbus/RS485.
Instant Hardware Interlock
Direct relay dry-contact switching enables sub-second reaction times to prevent over-ozonation without reliance on cloud or network latency.
Tropical Climate Resilience
Specially engineered enclosure designs and sensor coatings prevent condensation damage in Thailand's high temperature and high humidity conditions.
Multi-Point Alarm Logic
Configurable high/low alarm setpoints with programmable hysteresis prevent relay chattering during minor concentration fluctuations.
2. Growth Trends & Localized Application Scenarios Across Thailand
Thailand’s tropical climate—characterized by high ambient temperatures and ambient humidity exceeding 80% throughout much of the year—fosters rapid mold, bacteria, and biofilm growth in indoor air delivery systems and water reservoirs. Consequently, ozone treatment solutions paired with smart relay output controllers are expanding rapidly across several strategic commercial and industrial sectors:
A. Bangkok Commercial High-Rises & Shopping Malls
In metropolitan Bangkok, major commercial complexes and Grade-A office towers deploy ozone injection within Air Handling Units (AHUs) and fresh air ducts to sterilize cooling coils and eliminate stubborn volatile organic odor compounds. In-duct ozone sensors paired with real-time relay control ensure ozone is injected precisely when occupied spaces are clear, automatically shutting off generation if indoor ambient levels rise near human occupancy thresholds.
B. Shrimp Farming & Aquaculture in Chachoengsao & Surat Thani
Thailand is one of the world's leading exporters of processed seafood and black tiger shrimp. Advanced Recirculating Aquaculture Systems (RAS) utilize dissolved ozone injection to oxidize organic waste, reduce ammonia, and destroy pathogens without leaving harmful chemical residues. Relay output ozone controllers control the dosing pumps, turning off high-voltage ozone generators if residual ambient off-gas levels exceed safe limits.
C. Luxury Resort Water & Spa Disinfection in Phuket & Koh Samui
Thailand’s premier hospitality sector relies on ozone water treatment for hotel swimming pools, eco-resort spas, and centralized laundry operations to reduce reliance on traditional chlorine. Wall-mounted ozone monitors with local relay outputs provide guest safety assurance by controlling pool room ventilation and triggering audible alarms if off-gassing occurs.
D. Food Processing & Cold Storage in Rayong & Samut Prakan
Food processing lines and cold storage facilities use gaseous ozone to extend the shelf life of fresh tropical fruits, poultry, and packaged foods. Controllers equipped with relay switches automate gas dosing cycles during post-shift sanitation hours while ensuring worker re-entry safety through automated interlocking door safety locks.
3. Technical Architecture & System Integration
When selecting an Ozone Controller With Relay Output for deployment in Thailand’s challenging tropical conditions, facility managers and system integrators must evaluate core hardware characteristics:
| Technical Parameter | Standard Requirement | Tongdy Advanced Specification |
|---|---|---|
| Gas Sensing Principle | Electrochemical / Semiconductor | High-Precision Electrochemical / Proprietary Multi-Sensor Engine |
| Relay Output Configuration | Single SPDT Relay (3A/250VAC) | Dual Relay Contacts (5A/250VAC), Programmable Dry Contacts |
| Signal Transmission | 4-20mA or 0-10V Analog | RS485 Modbus RTU / BACnet MS/TP / Wi-Fi / RJ45 Ethernet |
| Calibration & Compensation | Manual Trimming | Proprietary Auto-Calibration Algorithm with Temp/RH Drift Compensation |
| Operating Humidity Range | 0 to 85% RH (Non-condensing) | 0 to 95% RH Dew-Proof & Enclosed Cast Aluminum Housing Options |
| Data Logging Capabilities | None / External Logger Needed | On-board MicroSD / Flash Memory + Cloud Connectivity (MyTongdy Platform) |
Modbus & Relay Interlock Workflow
Tongdy ozone controllers provide seamless integration with major industrial automation protocols (Siemens, Honeywell, Schneider Electric, Johnson Controls). The physical relay output serves as an independent, failsafe circuit breaker that functions even in the event of central PLC network disconnects, providing an essential layer of redundant safety for local operators.
4. Company Background: Tongdy Sensing Technology Corporation
Helping You Build & Maintain a Healthy Indoor Environment
Our work makes a profound difference in creating and sustaining healthy indoor air quality. As one of the earliest pioneering companies in China engaged in indoor gas detection and environmental control systems, Tongdy Sensing Technology Corporation has continuously focused its strong technology development and engineering design capabilities on high-performance gas sensors, transmitters, and automated controllers.
Over more than 15 to 20 years of dedicated industry leadership, Tongdy has supplied over 100 commercial-grade gas monitoring and relay control devices—including CO2, O3, TVOC, PM2.5/PM10, temperature, and humidity devices—trusted by engineering consultants, BMS integrators, and industrial plant managers worldwide.
5. Our Purpose & Corporate Social Responsibility
We foster research and development focused on obtaining real, precise air quality data. Our purpose is to help clients understand, assess, and optimize the air they breathe through quantitative measurement, intelligent relay control, and deep data analysis. In pursuing our ultimate vision of healthy indoor spaces, we remain committed to technological innovation and cultivating the next generation of sensor engineers.
Advancing Global Health via WELL Building Standard™
Tongdy actively contributes to public welfare by partnering with global organizations such as the International WELL Building Institute (IWBI)—the world's leading organization focused on deploying people-first places. Our research explores the direct impact of real-time air sanitation and ozone safety control on human health based on the WELL Building Standard™ and LEED green building benchmarks.
6. Technological Core Values & Key Advantages
Exclusive Innovative Calibration Algorithm
Proprietary dynamic temperature and humidity compensation software algorithms support higher data accuracy across severe environmental shifts in tropical zones.
Unique Professional Multi-Sensor Module
Special sealed cast aluminum housing structures host up to six sensing parameters inside a single compact module with minimal cross-gas interference.
Continuous R&D & Strict Quality Control
Tongdy-owned manufacturing lines feature heavy ongoing investment in testing chambers, automated calibration rigs, and stringent ISO quality assurance.
"MyTongdy" Cloud Data Platform
Real-time remote monitoring, historical trend charts, relay trip logging, and instant app alerts empower facility managers on web portals and mobile applications.
100+ Commercial Gas Products
Comprehensive portfolio spanning single-gas transmitters to multi-parameter smart controllers for HVAC, BMS, cleanrooms, and green building projects.
Tailored OEM/ODM Flexibility
Flexible firmware customization, relay logic programming, custom hardware enclosures, and fast delivery timelines for specialized client requirements.
Certificates & International Recognition
Tongdy products comply fully with international standards including CE, RoHS, ISO9001, and REACH certifications. Our continuous commitment to quality ensures seamless installation across international projects in Thailand, Southeast Asia, Europe, and the Americas.
Complete Product Range for Air Quality & Gas Control
Browse our full lineup of intelligent gas monitors, thermostats, transmitters, and multi-parameter controllers equipped with relay and digital communication outputs.
