MANITOR Manhole Monitoring System

Reducing the risk of manhole incidents


The Problem

Degraded power lines are a major cause of exploding manholes and stray voltage. In New York City alone hundreds of manholes explode each year. In addition, stray voltage electrifies manhole covers and other street furniture – traffic signals, bus shelters, mail boxes – that can cause injury and death.

Other problems include sewer overflow, discharge or unexpected release. Security related issues include theft, tampering and terrorism linked to manhole and other subsurface structures.

The Solution

MANITOR, our Manhole Monitoring System mitigates the risks from stray/contact voltage and exploding covers as well as securing manholes, boxes, chambers, vaults, cabinets, kiosks and bunkers from intrusion, theft and vandalism. In addition to security, the built-in SENSORCORE® platform can enable flood warning and other safety, environmental and quality monitoring.

MANITOR utilizes a range of commercially available, off-the-shelf sensors to detect and prevent manhole related incidents. Signals are transmitted securely from the embedded device to a dashboard on a phone, laptop or other platform. Over-the-Air updates ensure the firmware is current as well as enabling customization of the devices. False alarms are minimized by incorporating multiple sensors and technology-based sequential verification that removes or reduces human operator fallibility in interpreting a potential alarm.

MANITOR in action


  • Detects opening, entry and obstruction
  • Detects flooding, smoke, fire and gas
  • Communication by radio, cellular, PSTN, fiber optic or satellite
  • Optional infra red and visual cameras
  • Can be deployed in a range of urban or rural environments, above or below ground.


  • Powered by battery, solar or mains for total flexibility and reliability
  • Ruggedized format for operating in harsh environments
  • Adaptable to multiple shapes, sizes and materials of chambers, covers and doors

For more technical details on MANITOR please complete the form below to download a PDF and a member of our team will contact you. Or call us now to find out more.