Business Area

IoTManhole Sensor System Manhole Sensor System

Smart Manhole Management Solution for
Detecting Invisible Risks

The IoT-based Manhole Remote Sensing System strengthens the safety of urban infrastructure by monitoring variables such as water level, gas concentration, temperature, and water infiltration in real time. Without the need for on-site inspection, integrated management can be performed from the control center, enhancing maintenance efficiency and preventing potential accidents in advance.

Applicable to manhole facilities, construction sites, and various public safety areas, DT’s IoT-based safety management solution provides reliable monitoring and enables rapid response in disaster situations such as heavy rain and flooding — supporting safer and smarter urban environments.

※ Successfully supplied and installed nationwide for multiple public institutions and military units
Smart Manhole Monitoring Solution
  • Sensors inside manholes monitor water levels, gas presence, and lid status in real time.
  • An IoT-based monitoring solution designed to prevent safety accidents before they occur.
  • With our dedicated mobile application for real-time data monitoring,

    users can easily access and track critical information regardless of time or location.
Key Features
  • Optimized through 3 years of continuous R&D and on-site maintenance
  • Detects lid status, water level, fire, hazardous gases, temperature/humidity, and battery level
  • All-in-one design for easy installation inside manholes
  • Integrates with automatic extinguishers to suppress fires instantly when detected
Safety Hazard Monitoring
  • Alerts for manhole lid removal or accidental openings
  • Water level detection inside manholes
  • Gas hazard prevention: CO₂, CO, CH₄, H₂S
  • Environmental monitoring with temperature, humidity, and operational alerts
Manhole Sensor System System Configuration
Manhole Sensor System Performance Record
  • 2021.06Supply & Installation of LoRaWAN Network and Manhole in Seongnam Airforce
  • 2021.08Supply & Installation of LoRaWAN Network and Manhole in Chungju Airforce
  • 2021.11Supply & Installation of LoRaWAN Network and Manhole in Daegu Airforce
  • 2022.08Supply & Installation of LoRaWAN Network and Manhole in Pyeontaek Airforce
  • 2022.10Supply & Installation of LoRaWAN Network and Manhole in Gangreung Airforce
  • 2022.10Supply & Installation of LoRaWAN Network and Manhole in Wonju Airforce
  • 2022.11Supply & Installation of LoRaWAN Network and Manhole in Yecheon Airforce
  • 2022.11Supply & Installation of LoRaWAN Network and Manhole in Suwon Airforce
  • 2022.12Supply & Installation of LoRaWAN Network and Manhole in Cheongju Airforce
  • 2023.10Supply & Installation of Streetlight Controller in Wonju Airforce
Integrated Monitoring System