VigiSite
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Construction site security 24/7, 100% autonomous

Installed in 1 day — instant photo alerts — immediate deterrence

Protect your assets and secure your deadlines in Belgium. No electricity, wireless, no constraints.

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VigiSite — Autonomous security system for construction sites
14-month battery life 113 dB + flash 100% wireless 4G
The reality

Construction sites are vulnerable targets

The context

Open and transient environments housing high-value equipment, accessible to everyone.

The threat

Equipment theft, nighttime intrusions, vandalism — daily risks that directly impact your projects.

The objective

Secure the perimeter 24/7, without construction work and without constraints, to protect your investments.

Financial impact

The true cost of an intrusion

Direct costs

  • Replacement of stolen equipment
  • Tool replacement
  • Damage repair

Hidden costs

  • Disrupted schedules and critical delays
  • Contractual delay penalties
  • Increased insurance premiums
  • Deductibles and administrative procedures

A significant share of thefts is linked to access

Subcontractor rotation and key management make traditional security ineffective.

Legal advantage

From civil to criminal proceedings

Intruder caught on a construction site — VigiSite unit activated with red flash

Without alarm

Civil matter
  • Squatters → no flagrant offence
  • Difficult to obtain authorities' intervention
  • Long and costly procedure

With VigiSite

Criminal matter
  • Facilitates flagrant offence detection
  • Strengthens response by authorities
  • Actionable photo and video evidence

Duty of Care

A third party injured on your site engages your civil liability. The alarm proves your duty of care obligation. Without footage, it's your word against theirs — recording means defending your rights.

Intervention depends on the competent authorities and the context of each situation.

Protect yourself legally
Field challenges

Designed for construction site constraints

No electricity

Total autonomy of 14 months thanks to built-in long-life batteries. No external power supply needed.

Hostile environment

Robust IP66-rated polyester enclosure designed to withstand dust, rain, impacts and extreme outdoor conditions.

Changing layout

100% wireless and repositionable in minutes. Adapts to your site's evolution without any cabling.

The VigiSite system

Detection. Deterrence. Protection.

VigiSite — Autonomous security system
VigiSite enclosure installed on site with siren

Detection

Ajax MotionCam Outdoor (PhOD) Jeweller

Intelligent motion sensor with built-in photo capture. Detects and captures visual evidence instantly, day and night.

Deterrence

Ajax StreetSiren Jeweller

Powerful 113 dB outdoor siren with LED flash. Immediate and visible deterrent effect across the entire site perimeter.

Protection

IP66 polyester enclosure

Locked IP66-rated polyester enclosure resistant to removal attempts. Protects the electronics and discourages vandalism.

Discover our solution
Field reliability

Built to last, designed for the site

VigiSite — Open housing, long-life batteries
14 months

14-month battery life

Ajax Hub 2 Plus Jeweller

Built-in long-life battery. No interruption possible, no dependency on the electrical grid.

100% wireless

100% wireless

No cabling required. No wall chasing, no construction work. Secure Jeweller radio communication.

1 day

Rapid deployment

System operational on the day of delivery. Delivery and installation by our team in one day.

The protocol

4 steps to secure your site

AlarmNet technician installing a VigiSite sensor at height
01

Install

Delivery and installation by our team in one day. System immediately operational.

02

Monitor

24/7 motion detection with automatic photo capture at every alert.

03

Alert

Instant notification on your smartphone or to an approved monitoring centre.

04

Act

Video verification and rapid intervention. Evidence is immediately available.

Secure your site
Connected & certified

Control your security at your fingertips

AlarmNet technician installing a VigiSite sensor at height

Ajax mobile app

Receive real-time alerts, easily manage multiple sites, view detection photos and control your system wherever you are.

  • Instant alerts with photos
  • Multi-site management
  • Remote arming/disarming
  • Complete event history

INCERT certified

INCERT certified installer (CCure), based in Nivelles — quality label recognised by insurers in Belgium. Your installation meets the strictest industry standards.

INCERT

CCure

Jeweller

Ajax Systems

Based in Nivelles — operating across all of Belgium
Property developers Infrastructure Renovation Events
Complete solutions

Beyond site security

Video surveillance

Fixed or motorised PTZ cameras with infrared night vision. Ideal for construction sites, car parks and events.

Learn more

Fire protection

Certified smoke and heat detectors, integrated into the alarm system for complete protection.

Learn more

Vehicle protection

Anti-theft locks and volumetric alarm to secure your professional vehicle fleet.

Learn more

Access control

RFID badges, code keypads and IP video intercoms to manage access to your site.

Learn more
Frequently asked questions

Everything you need to know about construction site security

How does the VigiSite alarm system work?
VigiSite is an autonomous alarm system specifically designed for construction site security in Belgium. It combines Ajax motion detectors with automatic photo capture, a 113 dB outdoor siren and an IP66-rated anti-vandalism polyester enclosure. As soon as motion is detected, a photo is instantly sent to your smartphone via the Ajax app. The system operates 24/7 without any intervention on your part.
Is electricity or an internet connection needed on the construction site?
No, the VigiSite system is 100% autonomous and wireless. It runs on built-in long-life batteries and communicates via the mobile network (4G). No power supply, no internet connection and no cabling are required. It's the ideal solution for construction sites where infrastructure is not yet in place.
How long does the system last without recharging?
The VigiSite system offers a 14-month battery life, thanks to the low-power Ajax Hub 2 Plus Jeweller technology. This duration amply covers most construction projects. No maintenance or battery replacement is needed throughout the entire duration of your project.
How long does installation take on a construction site?
Installation is carried out by our certified team in a single day. We deliver, install and configure the entire system. Being 100% wireless, no drilling or cabling is required. The system is operational as soon as installation is complete and can be repositioned in minutes if the site layout changes.
What happens when an intrusion is detected?
When an intrusion occurs, the protocol activates in 4 steps: the detector picks up the movement and takes an automatic photo, the 113 dB siren sounds to deter the intruder, you receive an instant notification with the photo on your smartphone, and evidence is forwarded for rapid intervention or filing a report. You can also opt for connection to an approved monitoring centre.
Is the system certified? Will my insurance accept it?
Yes, VigiSite is installed by CCure, an INCERT certified installer — the benchmark for electronic security in Belgium. This certification is recognised by insurance companies and may help reduce your premiums. The Ajax Systems equipment used is also certified according to the strictest European standards.
What geographical area do you cover in Belgium?
We operate across the entire Belgian territory: Brussels, Wallonia and Flanders. Our team is based in Nivelles (Walloon Brabant) and travels for the installation and maintenance of your construction site security systems. Whether your site is in Liege, Namur, Charleroi, Mons, Ghent or Antwerp, we ensure rapid deployment.
How much does construction site security with VigiSite cost?
The cost depends on the size of the site and the number of detectors required. We offer tailored solutions for rental or purchase. Request a free personalised quote — we assess your needs and propose the most suitable solution. Investing in a construction site alarm quickly pays for itself compared to the cost of theft or project delays.
See all 36 frequently asked questions
How it works

From your call to protecting your site

1

Discovery call

10 min

We assess your needs and your site configuration together.

2

Visit & quote

An expert visits your site to design the ideal solution. Free quote within 48 hours.

3

Installation

1 day

Delivery and installation by our INCERT certified team. Operational the same day.

4

Activation

Your site is protected 24/7. You receive your access to the Ajax app.

Contact

Request your free quote

Guaranteed response within 24 hours. Our team supports you from assessment to installation.

Contact us directly

+32 2 653 10 18
vigisite@alarmnet.be

31 rue de Charleroi, 1400 Nivelles

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