AOV Roof Vents
VentecAOV OSTRO
140° opening single-leaf natural smoke ventilator up to 2.5m² GFA. For flat and pitched roofs. EN 12101-2 certified with 24V actuator. Vent Trade.
- up to 2.5m²
- Roof 140° opening
- 24v
- Poly, insulated or dome
Ventec O Range 7 Smoke Control Panel
O Range Smoke Control ideal for Multi-Zone with lockout. Golden Thread Compliant, Protects The engineer and the residents. Smart : Secure : Verified: Connected. Fire Innovation of the Year Award-Shortlisted 2026
Why Choose the O Range 
SMART
Intelligent firefighter switches that become active when there is an actual smoke event. Installer-friendly software with system-wide diagnostics.
SECURE
Tamper resistant by design with digitally locked operation. No master controller, each panel operates independently for maximum resilience.
VERIFIED
Golden thread compliant for full traceability including commissioning and maintenance. Engineer 2FA login ensures only authorised personnel can access system configuration.
Certified to BS EN 12101-10
Fully compliant and independently verified for smoke and heat control systems.
Highly Configurable
Simple to use O Range Connect software screen meaning you can configure quickly and easily.
7 Amp Output
Powers demanding AOVs and dampers with ease: ideal for stairwells or multi-zone systems.
3/7 Core Firefighter Switch
Great for refurbishment projects using existing cabling for firefighter switches.
Built in Anti-Trap Technology
Built-in anti-trap protection for safe operation of AOVs and smoke vents.
Access Network from any Panel
Monitor and manage your entire networked system from any single O Range panel.
Plug & Play Stairwell Pre-Configured
Arrives ready for single stairwell applications. Minimal setup required: just connect and go.
Golden Thread Traceability
Digital audit trail with engineer 2FA verification for full building lifecycle traceability.
24hr Delivery in Stock
Shipped from our £1M UK stock holding: no waiting, no project delays.
Zonal Lockout
Once one zone is triggered, all others are disabled.
Built-in Fault Monitoring
Continuous system monitoring with automatic fault detection and reporting for total peace of mind.
24/7 O Range Phone Support
Speak directly for installation or maintenance help by phone or WhatsApp whenever you need it.
Pre-Configured
Arrives ready for single stairwell applications. Plug & play with minimal setup required.
7A Core Output
Powerful 7 Amp motor output drives demanding AOVs and dampers with ease.
72-Hour Battery Standby
2x 12Vdc 7Ah batteries guarantee emergency activation even during extended power outages.
Intelligent Firefighter Switch
3/7 Core firefighter switch support with smart activation only during smoke events.
Up to 60 Zones
Network up to 60 O Range panels using O Range Connect software for large multi-zone systems.
No Master Controller
Each panel operates independently for maximum resilience. No single point of failure.
Golden Thread Traceability
Digital audit trail with engineer 2FA verification for full building lifecycle traceability.
O Range Connect
Dedicated configuration and monitoring software for networked O Range installations.
Choose Your Configuration
Every O Range panel ships with the same powerful 7 Amp core. Add options to match your project requirements.
O Range 7
Standard
Single or multi-zone smoke control with 7A output, 72-hour battery standby and full BS EN 12101-10 certification. The complete solution out of the box.
O Range Optional
Maglock Add-on
Adds integrated magnetic lock release for AOV windows. Holds vents securely closed until fire signal activates release and opening.
O Range Optional
Enviro Add-on
Adds day-to-day natural ventilation control with rain, wind and temperature sensors. Automatic environmental management alongside fire safety.
Compatible Ancillaries
FS
Intelligent Firefighter Switch
Manual override switches for fire service use that are inactive till a smoke event.
OSD
Optical Smoke Detector
Smoke detector for smoke detection when no fire alarm is present.
CSP
Control Status Panel
Visual status display with Fire, Fault and Healthy LED indicators for O Range smoke control systems.
RKS
Roof Access Key Switch
Key-operated selector switch for manual opening or closing of roof hatches, vents and skylights.
TC/TTC
Natural Heat Sensor
Natural heat detection for fire zone monitoring.
Certifications & Compliance
BS EN 12101-10:2005
Dual Kiwa certificates of constancy of performance. Tested and certified for smoke and heat exhaust ventilation systems.
RRO 2005 Compliant
Meets Regulatory Reform (Fire Safety) Order 2005 requirements for responsible persons and building compliance.
Golden Thread Ready
Digital audit trail with engineer 2FA verification. Full traceability from commissioning through the building lifecycle.
Need Some Help?
We have a team of ventilation specialists on hand to help guide you towards selecting and customising your system.
Call us: 01202 725 485
Email us: info@vent-trade.co.uk
Technical Specifications
Inputs
- Smoke Detector / Fire Alarm Inputs: 4
- Firefighter Switches Supported: 2 max
- Firefighter Switch Input Cable: 7-core + earth
- Environmental Switch (Manual): 1
- Thermostat / Wind / Rain Sensor Inputs: 4
- CO2 Sensor Inputs: 4
- Maglock Support: Optional
Outputs
- Motor Output Current: 1x 7A
- Enviro Assist Damper Control: Optional upgrade
- Fault VFC: 2x optional upgrade
- Lift-to-Ground Function: Optional upgrade
Diagnostics & Display
- Onboard and Front Panel LEDs
- System Status via Firefighter's Switch and O Range System Status Panel
Downloads & Resources
Accessory Data Sheets
CSP Data Sheet Firefighter Switch Optical Smoke Detector Roof Access Key SwitchRelated Products
AOV Roof Vents
VentecAOV OSTRO Access
140° opening smoke ventilator with roof access capability up to 2.5m² GFA. Offset 24v actuator for safe maintenance access. BS EN 12101-2 certified 140° opening
- up to 2.5m²
- Roof 140° opening
- 24v
- Poly, insulated or dome
AOV Windows
VentecCentro Window
Centre-pivot EN 12101-2 smoke ventilation roof window with integrated actuator and 90° opening. Up to 2.5m² GFA. For stairwells and corridors.
- Centre-pivot
- Up to 1.68m² GFA
- Insulated glazing with low-E coating
- 90° opening for maximum smoke clearance