Smart Gas Detectors & Controller Units
WiFi or LoraWAN, plus RS485 optional data logger
CO controller with BACnet RS485
TVOC Indoor Air Quality Monitor
Temperature and Humidity Sensing with Data Logger and RS485 or WiFi
Industrial Growth & Ozone Control Solutions in Bangladesh
As Bangladesh undergoes rapid industrial expansion, particularly driven by its world-class Ready-Made Garment (RMG) sector, pharmaceuticals, food processing, and municipal wastewater processing, the demand for precision air and water treatment systems has escalated dramatically. Among these solutions, an Ozone Controller With Relay Output in Bangladesh has emerged as a cornerstone technology for ensuring worker safety, automated environmental compliance, and process efficiency.
Ozone (O3) is a powerful disinfectant and oxidizing agent widely used for sterilizing process water, treating industrial effluent in Effluent Treatment Plants (ETP), purifying HVAC air streams, and eliminating complex volatile organic compounds (VOCs). However, while ozone is remarkably effective, elevated ambient concentrations pose strict health hazards to factory workers. This makes real-time gas monitoring combined with automatic relay switching indispensable for modern Bangladeshi facilities operating in Dhaka, Gazipur, Narayanganj, and Chittagong.
Why Relay Output Capability Matters for Industrial Automation
An ozone controller integrated with dry-contact relay outputs acts as both a brain and a safety guard. When ambient O3 gas concentration exceeds predefined safety limits (e.g., OSHA or local Bangladesh Department of Environment guidelines), the relay switch instantly trips. This signal can automatically shut down ozone generators, trigger emergency exhaust ventilation fans, activate visible audiovisual strobe alarms, or communicate via RS485 Modbus / BACnet protocols directly into the main Building Management System (BMS).
Key Applications Across Bangladesh's Commercial Landscape
Textile & Garment ETP Water Disinfection
Textile mills use ozone to decolorize dye wastewater and break down organic toxins. Relay controllers automatically manage generator output based on real-time residual ozone levels.
Pharmaceutical Cleanroom & HVAC Sanitation
Pharmaceutical hubs near Dhaka rely on ozone gas for room sterilization. Controllers ensure strict zero-leakage conditions before personnel re-enter production cleanrooms.
Cold Storage & Agriculture Preservation
Ozone destroys ethylene and airborne bacteria in agricultural warehouses across rural Bangladesh, expanding fruit and vegetable shelf life without leaving chemical residues.
Market Trends Driving Ozone Controller Adoption in Bangladesh
In recent years, industrial operations across Bangladesh have shifted towards sustainable and green building standards, heavily influenced by international buyer requirements, USGBC LEED certifications, and strict local environment conservation rules. Several key trends define the market today:
- LEED & GREEN Factory Standards: Over 200 garment factories in Bangladesh are LEED-certified. High-accuracy gas monitoring (CO2, TVOC, O3, CO) directly contributes to Indoor Environmental Quality (IEQ) credits.
- IoT & Remote Cloud Monitoring: Modern facilities demand controllers equipped with Wi-Fi, LoRaWAN, or RS485 communication so plant engineers can track gas levels on mobile apps or central dashboards.
- Multi-Sensor Modular Design: Industrial buyers prefer integrated devices capable of expanding to detect multiple parameters alongside ozone, including humidity, temperature, particulate matter (PM2.5/PM10), and carbon monoxide.
- Smart HVAC Energy Efficiency: Dual-relay output controllers dynamically cycle air handling units (AHUs) and fresh air dampers only when needed, lowering energy consumption significantly.
Tongdy Sensing Technology Corporation stands at the forefront of this evolution, delivering high-precision ozone controllers and environmental monitoring systems built for challenging tropical industrial conditions like high humidity and continuous operating cycles common in South Asia.
Tongdy Sensing Technology Corporation
Help You Build and Maintain a Healthy Indoor Environment
Our work makes a difference in helping you make the healthy indoor air quality. As one of the earliest companies in China engaged in air quality monitoring products, Tongdy has been always focusing on its strong technology development and design capabilities on the indoor air quality monitors.
Focusing on air quality detection and control over 15 years, our ultimate purpose is creating healthy indoor air quality. We are committed to obtaining real and accurate data and cultivating the next generation of innovators in technology and engineering.
Social Responsibility
Tongdy actively develops air quality monitors and is devoted to healthy indoor air quality, striving to become an excellent enterprise model. As a corporate citizen, Tongdy has contributed to public welfare undertakings such as cooperating with public benefit corporations like WELL—the world’s leading organization focused on deploying people-first places to advance a global culture of health, especially exploring the impact of indoor air quality to people’s health based on The WELL Building Standard™.
Our Core Values & Technical Advantages
Exclusive Innovative Calibration Algorithm
Proprietary technology and effective calibration methods support higher data accuracy across different environmental conditions.
Unique Professional Multi-Sensor Module
Special multi-sensor module featuring a sealed cast aluminum structure containing up to six sensors inside.
Continuous R&D & Quality Control
Tongdy-owned facilities with substantial investment in research and development to ensure unmatched product reliability and innovation.
Real-Time Data Monitoring & Analytics
The "MyTongdy" platform assists users in reading and analyzing air quality data via desktop software or mobile APPs.
The Expert of Indoor Air Quality Data
With over 15 years of experience in IAQ, Tongdy delivers commercial-grade accurate data to foster health-centered indoor environments.
Flexible Customization & Quick Delivery
Flexible hardware options, deep technical expertise, and fast delivery timelines enable cost-effective, customized gas control solutions.
Certificates and Honors
Why Choose Tongdy Sensing for Bangladesh Projects?
- 20+ Years of Expertise in IAQ & HVAC Solutions: Trusted worldwide for high-performance products and professional service fully compliant with international Green Building standards.
- 100+ Monitoring and Control Products: Extensive catalog offering CO2, ozone, single-gas, and multi-sensor units engineered for HVAC, BMS, and industrial automation.
- Reliable and Actionable Data: Equipping industrial engineers and facility managers in Bangladesh with real-time data to make fast, educated operational decisions.
- Tailored to Your Specific Needs: Versatile communication protocols (Modbus RS485, Wi-Fi, LoRaWAN, BACnet) ensuring seamless integration into localized factory control systems.
Commercial Air Quality IoT
IAQ Multi Sensor Gas monitor
Basic Carbon Monoxide Sensor
Carbon Monoxide Monitor and Controller