What does WANDI Korea do?

WANDI Korea is the official Korean distributor of WANDI environmental and gas measurement instruments, operated by RS Korea Co., Ltd. We provide sales, calibration, repair, installation, and technical support for portable and fixed multi-gas detectors and air quality monitoring systems, exporting to more than 20 countries with over 5,000 delivery records.

What products do you offer?

We supply portable multi-gas detectors (EDW100, EDW500, Gas Tiger series), fixed multi-gas detectors (FIX800, FIX900, FIX-AP), air quality monitoring systems (FIX5000), and gas leak detectors (GLD series) for industrial safety and environmental measurement.

Which gases can be measured?

Our instruments measure oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), combustible gases (EX), carbon dioxide (CO2), ammonia (NH3), and volatile organic compounds (VOC), among other hazardous and combustible gases found on industrial sites.

Do you provide calibration and repair services?

Yes. Beyond product sales, WANDI Korea provides in-house and national certified calibration, repair, installation, and ongoing technical support. Calibration and repair requests can be submitted through the quote/calibration/repair pages on our website.

How can I get a quote for a gas detector?

You can request a quote directly through the quote page on our website or through a nearby dealer. Let us know your application and target gases, and we will recommend a suitable model.

In which fields are the products used?

They are used across a wide range of industrial sites including laboratories, factories and plants, hospitals, military facilities, livestock and wastewater treatment, and construction sites for worker safety and environmental monitoring.

FIX800 O₂ Monitor + FIX-AP IoT Remote Monitoring — General Hospital Wastewater Treatment Plant (Seoul)

General Hospital Wastewater Treatment Plant — Oxygen Monitor Installation and IoT Remote Monitoring

This project installed a FIX800 fixed oxygen detector at the wastewater treatment facility of a large general hospital in Seoul, integrated with a FIX-AP wireless IoT module for remote monitoring. Hospital wastewater treatment systems process complex effluent from clinical, surgical, and pharmaceutical sources, carrying a high organic load that generates H₂S, CH₄, and CO₂ through anaerobic decomposition — creating a persistent confined-space oxygen deficiency risk. The 24-hour operational nature of hospital facilities makes continuous remote monitoring essential for maintaining worker safety even during unattended night and weekend periods.

Installation Specifications

Item	Details
Detector	FIX800 fixed O₂ (oxygen) monitor
IoT module	FIX-AP wireless remote monitoring module
Target gas	O₂ (oxygen) — continuous confined-space oxygen deficiency monitoring
Communication	Wired RS-485 + wireless FIX-AP dual configuration
Purpose	Korea OSHA confined space compliance + 24-hour remote safety monitoring
Location	Seoul

Benefits of FIX-AP Wireless IoT Monitoring

Real-time gas concentration data transmitted to facility manager smartphones and PCs — essential for facilities like hospital wastewater plants where 24-hour staffed monitoring is impractical
Immediate mobile push notifications when concentrations exceed alarm setpoints — ensures rapid response even during night and weekend unattended periods
Cloud storage of measurement data enables periodic report generation and regulatory compliance documentation
Monitoring coverage can be expanded wirelessly without additional wiring installation

Hospital Wastewater Confined Space Safety Standards

O₂ (Oxygen): Maintain 18.0–23.5%. Medical wastewater decomposition consumes oxygen — deficiency risk is ongoing
O₂, H₂S, and CO₂ must be measured and adequate air confirmed before any personnel enter the space
A designated standby monitor and rescue equipment must be in place during confined space work (Occupational Safety and Health Standards)
Medical wastewater characteristics: presence of antibiotics, disinfectants, and pharmaceuticals may alter microbial decomposition rates compared to standard municipal wastewater

Frequently Asked Questions

How does hospital wastewater differ from standard municipal sewage?

Hospital effluent contains antibiotics, disinfectants, pharmaceutical compounds, and potentially radioisotopes from nuclear medicine procedures. These constituents can inhibit or alter microbial decomposition activity, producing different gas generation patterns compared to standard wastewater — making more rigorous and continuous monitoring necessary.

How does the FIX-AP module transmit monitoring data?

FIX-AP transmits measurement data to a cloud server in real time via Wi-Fi or LTE. Facility managers can access current gas concentrations, alarm event history, and trend graphs through a smartphone app or web dashboard. For 24-hour facilities like hospitals, this enables immediate alert delivery to responsible personnel even when the site is unattended.

With only an O₂ detector installed, are H₂S and CH₄ left unmonitored?

This initial installation prioritized oxygen deficiency monitoring. H₂S, CH₄, and CO₂ sensors can be added by utilizing the FIX800's additional sensor slots or installing supplementary FIX800 units. New detectors can be integrated into the existing FIX-AP wireless network via RS-485 Modbus without replacing the IoT module.

Does Korea's Occupational Safety and Health Act apply to hospital wastewater treatment facilities?

Yes. Confined space regulations apply regardless of facility type or operator. Hospital wastewater treatment systems are designated confined spaces subject to all relevant requirements — pre-entry gas measurement, adequate ventilation, standby monitor deployment, and rescue equipment readiness — and are subject to regular occupational safety inspection.

Can FIX-AP IoT monitoring and a FIX-DS LED display board operate simultaneously?

Yes. FIX800 supports simultaneous connection of both a FIX-DS display board and a FIX-AP wireless module via RS-485, enabling a dual-layer monitoring configuration — on-site visual display for personnel at the facility combined with remote monitoring for off-site management.

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