📌 3 Key Takeaways from This Case
- An industrial site in Dangjin, Chungcheongnam-do needed to measure high-concentration methane (CH4) gas across a 0-100% VOL range, but with no Wi-Fi infrastructure on site, there was no straightforward way to log and share readings in real time.
- WANDI's EDW500 portable IoT gas detector has a built-in SIM card, so it transmits data to the cloud without needing Wi-Fi. Managers can check live readings from Seoul, Busan, or even overseas.
- For spots that are hard to enter directly or where a detector can't be permanently mounted, a combined suction pump<\/strong> lets the team measure remotely just by inserting a hose. This installation was carried out by WANDI's partner VPE Korea.
A gas detector that can't be checked "right now, from here" is only half the equipment. That was exactly the situation at this industrial site in Dangjin. Measuring methane was essential given the high-concentration process involved, but with no Wi-Fi on site, how to log and share the data in real time remained an open problem. Here's how WANDI's partner VPE Korea solved it by deploying the EDW500 portable IoT gas detector.
What Was the Problem at a Wi-Fi-Free Site?
Methane (CH4) is lighter than air and nearly colorless and odorless, making it very difficult to detect a leak by human senses alone. Continuous monitoring with a detector is the baseline, but there's a real difference in safety management between a reading only the on-site operator sees, and one that's logged and shared with other managers in real time.
- The person taking the measurement and the person who needs to make decisions based on it are often in different locations, sometimes headquarters or another region entirely.
- Standard wireless IoT equipment is hard to use as-is at industrial or outdoor sites without Wi-Fi.
- Without a data log, there's no way to check afterward whether an anomaly occurred.
This site faced all three problems at once. What it needed wasn't just a "detector" — it needed a device with a built-in communication system that could be checked from anywhere.
What Makes the EDW500 Portable IoT Gas Detector Different?
The EDW500 is a portable device that measures high-concentration methane gas up to 0-100% VOL, while letting the data be checked instantly on a smartphone or PC. The features that mattered most at this site were:
- Built-in SIM card:<\/strong> Data is transmitted over the cellular network without needing a separate Wi-Fi router or wired internet. This makes it usable as-is at industrial sites or remote facilities with no Wi-Fi.
- Free cloud monitoring:<\/strong> Once connected to the dedicated data monitoring system, other managers can check the same readings in real time regardless of region or country. Up to 10 clients can connect simultaneously, and up to 50 sensors can be linked at once.
- Combined suction pump support:<\/strong> For narrow gaps or suspected leak points that are hard to access directly, a suction pump attachment lets the team measure remotely by simply inserting a hose.
How It Was Applied On Site
VPE Korea deployed the EDW500 using two approaches depending on the nature of each measurement point. Accessible areas were measured directly with the handheld EDW500, while spots that were hard to enter or needed a pinpoint check at a suspected leak point were measured by connecting a hose to the suction pump and drawing air in from there.
The measured data goes straight to the cloud through the built-in SIM. While the on-site operator takes measurements in Dangjin, managers in other regions or even overseas can view the same live readings on the same screen. In other words, it no longer matters whether the person taking the measurement and the person who needs to review and act on it are in the same place.
Before and After: What Changed
| Category | Before | After Adopting EDW500 |
|---|---|---|
| Data transmission | No real-time transmission without Wi-Fi | Instant transmission via built-in SIM over the cellular network |
| Who can view readings | Only the on-site operator, immediately | Up to 10 people, from anywhere, simultaneously |
| Hard-to-access points | Difficult to measure at all | Measured remotely by inserting a hose into the suction pump |
| Cost | - | Cloud subscription free of charge |
Consider the EDW500 If Your Site Looks Like This
- Your measurement site has no Wi-Fi or wired internet
- The person taking measurements and the person making decisions are in different locations
- You run a process involving high-concentration methane, such as biogas, digesters, or landfills
- You need to check for leaks in narrow gaps or spots that are hard for people to enter
- You want to manage readings from multiple sites or sensors on a single integrated screen
Closing
No matter how accurate a detector is, safety management isn't complete unless the right person can see the reading at the right moment. This Dangjin site is a case where the EDW500's built-in SIM connectivity and cloud monitoring overcame the physical limitation of having no Wi-Fi. WANDI supplies portable and IoT gas detectors including the EDW500, along with on-site consultation tailored to each facility. If you need methane or multi-gas monitoring at a site without Wi-Fi, contact WANDI (+82-31-340-6952) for a configuration suited to your conditions.