PlugStream Sentinel

Sentinel pricing

A responsible safety baseline with a clear operational upgrade path.

Sentinel Protect is included for every chargepoint while it is actively connected to AmpNexus. Choose a paid Sentinel plan when you need help with operational availability, escalation, reporting and restoring your estate.

Sentinel Protect — Included

Included

Included only while the chargepoint is actively connected to the AmpNexus platform. It is not a standalone monitoring service.

Best for: Essential safety and security monitoring for every chargepoint while it is actively connected to AmpNexus.

Includes

Mandatory AmpNexus-defined safety and security rules
Critical incident visibility in the Portal
Notification to the primary account administrator
Basic incident history

Service boundaries

Rules cannot be disabled or customised
No operational availability monitoring
No reporting, integrations, support response, or SLA

Sentinel Monitor

From £59/month ex VAT

£29/site/month + £9/socket/month. Minimum £59/month ex VAT.

Best for: Small sites that need visibility, basic monitoring and light-touch support.

Includes

Everything in Sentinel Protect
Charger online/offline monitoring
Basic remote fault visibility
Session and energy visibility
Monthly usage export
Email support
Basic user/RFID support where supported

Not included

Proactive issue management
Included site visits
Electrical repairs
Replacement parts
Priority support
Fleet readiness checks

Request Monitor assessment

Sentinel Managed

Recommended

From £95/month ex VAT

£49/site/month + £15/socket/month. Minimum £95/month ex VAT.

Best for: Commercial and workplace sites that need active support, user management and site health reporting.

Includes

Everything in Sentinel Monitor
Configurable monitoring thresholds
Proactive fault review
Defined escalation routes
Remote reset/configuration where supported
Usage and energy reporting
User/RFID/group management where supported
Installer coordination where site attendance is needed
Monthly site health summary
Business-hours phone/email support

Not included

Electrical repairs
Replacement parts
Third-party warranty cover
Out-of-hours support
Guaranteed uptime SLA

Request Managed assessment

Sentinel Priority

From £195/month ex VAT

£99/site/month + £25/socket/month. Minimum £195/month ex VAT.

Best for: Fleet, depot and operationally important charging sites where charger availability directly affects operations.

Includes

Everything in Sentinel Managed
Custom monitoring rules
Cross-site intelligence and trend review
Approved integrations where supported
Controlled automation where supported and authorised
Priority support queue
Weekly estate health checks
Scheduled charging support where supported
Energy/load review
Quarterly service review
Named account contact
Migration/replacement planning support

Optional add-ons

Out-of-hours support retainer
Connectivity/SIM management
Load management support
Annual maintenance visits

Request Priority assessment

Protect identifies risk. Paid plans support operations.

Sentinel Protect tells you about critical safety and security risk. Paid Sentinel plans help you operate and restore your charging estate.

Assessment

Assessment and migration

Assessment and migration work is priced separately from the monthly Sentinel package because every existing charging estate is different. We confirm what can be supported, migrated or replaced before recommending a long-term plan.

Explore migration support

Sentinel estate assessment from £295 ex VAT
Third-party OCPP migration and onboarding from £495 ex VAT
Site visits quoted separately
Connectivity replacement quoted separately
Replacement hardware quoted separately

Pricing note

Paid plan prices shown are starting prices for standard small commercial sites and follow the VAT view selected in the header. Final pricing depends on the number of sites, number of sockets, charger model, OCPP access, connectivity, support requirements and any third-party dependencies. Electrical works, replacement parts, site visits and third-party warranty matters are quoted separately unless included in a separate agreement.