Manhole and access monitoring that reports instantly
Manhole covers, doors and hatches at distributed facilities are often freely accessible, and nobody notices when they are opened. Wireless sensors report every opening the moment it happens.
Your benefits
What access monitoring delivers in operation
Distributed facilities cannot be guarded. The sensor takes care of it, only reports when something happens, and needs neither cables nor a power connection to do so.
Enquire nowOpening is reported instantly
If a manhole cover is lifted or a secured door is opened without authorisation, the system registers it in the same moment and alerts automatically.
Retrofittable without cable trenches
Transmission runs wirelessly. At distributed and hard-to-reach measuring points, the groundwork falls away, the sensor fits into the existing stock.
Autonomous in continuous operation
The sensor works on battery power and without an on-site connection, even at sites without power and without network coverage inside a building.
Combinable with structural health monitoring
Access reports run through the same platform as water level, crack width and moisture. One access point, one alert chain, one point of contact.
Simulation
From opening to notification
The closed state is the normal case. If the cover leaves this position, the sensor detects the deviation and the notification goes out, without anyone needing to be on site.
Demonstration only
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Cover closed
condition as intended
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Cover opened
condition left
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Notification to those responsible
via the platform
Access reported
Notification to those responsible
How monitoring works
From the cover to the notification
The sensor sits on the moving part and detects its state. If it leaves the closed position, the notification goes out immediately, without anyone needing to be on site.
- 01
Mounting
The sensor is fitted to the cover, door or gate. No intervention in the building fabric, no cabling.
- 02
Monitoring
The closed state is the normal case. The sensor detects every deviation from it.
- 03
Transmission
The notification goes via NB-IoT to the platform, even from manholes and remote locations.
- 04
Alerting
Responsible parties are notified automatically so they can react before anyone works on the structure.
The properties of the sensor itself, from mounting in the manhole to the power supply and combining it with further measured variables, are gathered on the product page.
To the manhole sensorBasis for decisions
What you can decide with it
An opening notification is only worth something if it leads to an action. These are the questions it answers.
- 01
Send responders or not
A reported opening is a concrete occasion with location and time, not a guess after a round.
- 02
Limit site visits to what is necessary
Whoever knows the condition of distributed manholes drives there with purpose instead of checking everything on a schedule.
- 03
Demonstrate duty of care
An open manhole in public space is a hazard. The documented notification proves when it was known.
- 04
Separate manipulation from operating procedure
Scheduled maintenance and unauthorised access look different in the log, because the timestamp runs along.
One point of contact
From selecting the measuring points to operation
Infrasolute delivers access monitoring from one source, from the question of which access points need monitoring to ongoing alerting.
Concept
We clarify which access points are monitored and who is notified in an alarm event.
Learn moreInstallation
Mounting the sensors on the cover or door and commissioning the transmission.
Learn moreMaintenance and operation
We keep the sensors operational and monitor the battery charge level.
Learn moreMonitoring and alerting
Every opening runs through the defined alert chain, around the clock.
Learn moreWhich access points should be reported?
Tell us about the manholes, doors or gates in question. We will propose the measuring points and get back to you shortly with the next steps.
Roman Koch 
Data platform
All readings on one platform
The sensors transmit their readings wirelessly to the data platform, where they are evaluated, documented and continuously checked against your thresholds.
- AI-assisted data analysis
- User-focused reporting
- Continuous evaluation
- Warning and alarm thresholds
- Alerts by email and text message
- Remote access around the clock
- AI-assisted data analysis Condition within limits
- User-focused reporting Report ready
- Alerting Thresholds monitored
Application areas
Where access monitoring is needed
Wherever facilities are spread across an area and nobody stands in front of them permanently.
- Drinking water reservoirs and sewer shafts
- Cable and utility shafts
- Bunker doors and access hatches
- Ammunition stores and secured gates
- Level manholes and wells
- Technical rooms and operational buildings
Matches well with
Water level monitoring
The water level can be measured in the same manhole, both run through the same platform.
View
Critical infrastructure
Discreet, energy-autonomous monitoring for operators of critical infrastructure and military properties.
View
Municipalities and utilities
Monitor manholes, bridges and retaining walls in the municipal portfolio and prioritise measures.
ViewFrequently asked questions about manhole & access monitoring
What exactly does the sensor detect?
Does the sensor need a power connection?
Can monitoring be retrofitted to an existing site?
Who is notified in an alarm event?
Can access monitoring be combined with other measured variables?
Project inquiry
Which access points do you want to monitor?
Tell us about the manholes, doors or gates in question and who should react in an alarm event. We will get back to you shortly with a proposal for the measuring points and the alert chain.
+49 6742 8599600 DE +41 41 670 00 11 CH [email protected]