Detection gas monitoring equipment CS-iTWGM-01

for process monitoringfor industrial usesecurity

This intelligent monitoring terminal integrates manhole cover movement detection and hazardous gas monitoring to verify manhole cover status and detect underground hazardous gases, triggering alarms and reporting to the platform when anomalies occur.

Product functions

• Manhole monitoring management: parameter configuration, alarm statistics, work order dispatch, map display, hierarchical permission management and large-screen display via the accompanying platform.
• Manhole status detection: real-time determination of normal or abnormal status (e.g., tilt, displacement, breakage/drop).
• Anomaly alarm: automatic reporting to the platform when tilt, displacement or drop occurs; simultaneous checking of underground gas concentration against set thresholds to trigger alarms.
• Hazardous gas detection: monitors underground concentrations of carbon monoxide (CO), methane (CH4) and VOCs (examples: ethanol, toluene, hydrogen sulfide) with alarm on threshold exceedance.
• Alarm handling: supports alarm highlighting and synchronized alarm notifications.
• Automatic work order dispatch: detected anomalies can automatically create and assign work orders to maintenance personnel; maintenance results can be uploaded to close the management loop.
• Health self-check and environment monitoring: supports low-voltage self-check and underground temperature monitoring.
• Magnetic activation: supports magnetic activation for convenient on-site device activation and management.

Product features

• Easy installation, adaptable to various manhole cover types for status monitoring.
• Wireless communication: supports NB-IoT and LoRaWAN with strong penetration capability, able to penetrate cast-iron manhole covers.
• Accurate detection and stable operation with low-power design to extend battery life.

Specifications / Technical data

• Detection content: manhole tilt/displacement/breakage/drop status monitoring; underground hazardous gas detection including CO, CH4 and VOCs (e.g., ethanol, toluene, H2S).
• Installation position: mounted under the manhole cover; horizontally placed cover is considered normal.
• Alarm trigger example: alarm when tilt angle exceeds 10° (tilt threshold configurable) or when hazardous gas concentration exceeds configured thresholds.
• Communication: NB-IoT, LoRaWAN (wireless transmission of alarms to monitoring center/platform).
• Platform support: parameter configuration, alarm statistics, work order dispatch, map display, hierarchical permissions and large-screen display for operations and maintenance.
• Power and consumption: low-power design with long battery life (actual life depends on configuration and reporting frequency).
• Other: supports alarm highlight positioning, synchronized alarm notifications, automatic work order dispatch, low-voltage self-check, underground temperature monitoring and magnetic activation.