Using an optimized forward-scatter geometry, the VPF-710 reports Extinction Coefficient (EXCO) (standard) or Meteorological Optical Range (MOR) (special configuration) across a 10 m to 99.99 km measuring range, with performance shown to be comparable to transmissometer systems up to 75 km. Calibration follows ICAO 9328 and is traceable to a national weather service transmissometer—supporting use in ICAO/WMO-aligned visibility and RVR applications.

Built for long service life in corrosive locations, it features a hard-coat anodised aluminium housing plus window contamination monitoring with automatic compensation and two-stage cleaning warnings to reduce site visits. Power can be mains or DC, and an optional interface enables easy integration of the ALS-2 Ambient Light Sensor for streamlined RVR processing.

Key features

• Visibility output: EXCO (standard) / MOR (special configuration)

• Measuring range: 10 m to 99.99 km (proven up to 75 km)

• Open-head design for well-ventilated sampling in challenging weather

• Contamination monitoring + compensation with staged cleaning warnings

• Optional ALS-2 interface for appending ambient light data (RVR workflows)

• AC or DC powered; corrosion-resistant construction; 5-year warrant

Typical applications

Offshore platforms and coastal sites, airports and RVR-related systems, wind farms (including obstacle warning light control), industrial environments with dust/smoke.

Click here for full details on the VPF-710 on Senseca UK website. 

VPF710

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Unlike RF-based detectors, the BTD-350 is immune to radio interference and offers a detection range of up to 83 km, exceeding FAA aerodrome requirements. It detects cloud-to-ground, cloud-to-cloud, and intra-cloud lightning, as well as charged precipitation, and complies with EN 50536 and IEC 62793 for use in safety-critical, regulated applications, including marine and offshore.

Built for continuous outdoor operation, it features rugged, low-maintenance construction with high resistance to vibration, salt spray, and electromagnetic interference. Integration is supported via Ethernet or RS422, with optional relay outputs for local warning devices. An optional direction-finding feature provides lightning bearing information to improve situational awareness and response.

Key Features

• Quasi-electrostatic lightning and thunderstorm detection
• Early overhead lightning warning before first strike
• Detection of all lightning types, including charged precipitation
• Up to 83 km detection range
• Immune to RF and man-made radio interference
• Optional lightning direction-finding capability
• Ethernet or RS422 communication interfaces
• Optional relay outputs for warning systems
• Rugged, low-maintenance design for harsh environments

Typical Applications

Ideal for airports and aerodromes, offshore and marine installations, wind farms, industrial and energy facilities, ports, outdoor event sites, and critical infrastructure where reliable early thunderstorm warnings are essential for safety and operational continuity.

Click here for full details on the BTD-350 on Senseca UK website. 

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Unlike RF‑based lightning detectors, the BTD‑300 is immune to radio interference and offers a detection range up to 83 km, exceeding FAA aerodrome requirements. It meets EN 50536 and IEC 62793 standards, making it ideal for safety‑critical applications.

Built for harsh outdoor environments, the BTD‑300 features a robust, low‑maintenance design and supports flexible integration via Ethernet, RS422, or optional relay outputs. An optional direction‑finding module adds lightning bearing information for enhanced situational awareness.

Key Features

• Quasi‑electrostatic lightning and thunderstorm detection
• Early overhead lightning warning
• Detects all lightning types
• Up to 83 km detection range
• Immune to RF interference
• Optional direction‑finding capability
• Ethernet or RS422 integration
• Optional relay outputs
• Rugged, low‑maintenance design

Typical Applications

Ideal for airports, industrial and energy sites, ports and offshore platforms, sports venues, public events, and critical infrastructure requiring reliable early thunderstorm warning.

Click here for full details on the BTD-300 on Senseca UK website. 

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Key Features

• Complete, ready-to-use warning system with simple installation
• Early detection of overhead lightning risk before the first discharge
• Detects all lightning types plus charged precipitation and strong electric fields
• 35 km detection range with proven professional-grade performance
• Advanced automatic self-test ensures reliable system operation
• Very low false alarm rate (<2%) helped by detecting low-frequency electric-field disturbances and filtering higher-frequency radio interference
• Supplied with Lightning Works server software for monitoring, warning and data logging
• Compliant with EN50536:2011+A1:2012 (Class 1) and performs in accordance with IEC 62793 (Class A)

Typical Applications

The BTD 200 is ideal for locations where accurate and early lightning warnings directly improve safety and operational continuity. Common applications include sports facilities, outdoor event venues, schools, leisure venues, industrial sites, construction areas, and professional meteorological installations requiring dependable, real-time thunderstorm alerts.

Click here for full details on the BTD-200 on Senseca UK website. 

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Modern RWIS and tunnel safety infrastructures rely on sensitive visibility measurements to identify fog, pollution from slow or stationary vehicles, and smoke from fires. The RWS-30 supports these requirements and aligns with international tunnel guidelines. Fast, simple installation helps minimise lane closure times, while window contamination monitoring with automatic adjustment ensures maintenance is performed only when necessary.

The RWS-30 provides MOR and EXCO with an extended measurement range up to 99.99 km, and includes interfaces commonly used in tunnel environments: serial data plus 0–10 V and 4–20 mA outputs. Optional relay outputs enable direct control of alarms, tunnel entrance signs and ventilation systems when visibility drops due to pollution or smoke.

Key features

• Designed for road and tunnel environments; outputs aligned to tunnel guidelines
• Extended measurement range up to 99.99 km
• High sensitivity for detecting visibility reductions from pollution build-up and fire smoke
• Serial + analogue interfaces: RS232/422/485, 0–10 V, 4–20 mA
• Optional relays for alarms, signage and ventilation control
• Smart contamination monitoring with auto-correction and two-stage cleaning warnings
• Easy, fast installation to reduce lane closure time

Typical applications

• Road and tunnel visibility monitoring
• Tunnel safety systems for pollution and smoke detection
• Automated control of tunnel ventilation and entrance signage
• RWIS/ITS integration where analogue outputs are preferred

Click here for full details on the RWS-30 on Senseca UK website. 

RWS30

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With a measurement range from 10 m to 7.5 km, the RWS-20 is optimised for the conditions that most commonly affect driving safety—fog, heavy rain, surface spray and snow. Heated optical windows and optional hood heating support operation in harsh winter environments, while continuous contamination monitoring with automatic compensation helps minimise maintenance effort.

For integration into roadside systems, the sensor provides serial communications (RS232/422/485) and can be configured with analogue outputs and relays for direct connection to RWIS/ITS infrastructure, data loggers, control systems and roadside signage. Calibration is performed in accordance with ICAO 9328 and is traceable to an independent national weather service transmissometer.

Key features

• Forward scatter visibility measurement in a compact, cost-effective design
• Visibility range: 10 m to 7,500 m (user-selectable upper limit)
• Resistant to local lights (headlights, street lighting, warning beacons)
• Heated optics for reliable winter operation; optional hood heating
• Automatic contamination management with two-stage cleaning warnings
• Flexible outputs: RS232/422/485, optional 4–20 mA, voltage and relays

Typical applications

• Road-side visibility monitoring and RWIS installations
• Fog and spray detection for safety management
• Integration with variable message signs and roadside control systems
• Winter operations where snow and ice can affect visibility

Click here for full details on the RWS-20 on Senseca UK website. 

RWS20

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A proven forward-scatter architecture is combined with a backscatter receiver to enhance discrimination between liquid precipitation and multiple frozen precipitation types. When temperature information is available, the VPF-750 supports more detailed classification, including freezing precipitation, making it a strong choice for critical aviation operations and high-demand met networks.

The VPF-750 reports visibility as MOR and EXCO from 10 m to 99.99 km and is designed for smooth integration into automated systems. It also provides an extended present weather code set, supporting a broad range of WMO and METAR outputs (including significant past weather) and allowing thresholds to be aligned with national standards or adapted to local reporting practices.

Key features

• Flagship sensor for AWOS and major airport deployments
• Forward-scatter visibility with MOR and EXCO output
• Wide visibility range: 10 m to 99.99 km
• Integrated precipitation sensor plus backscatter receiver for advanced precipitation-type discrimination
• Integrated temperature and humidity sensors for improved reporting context
• Extended WMO/METAR present weather outputs, including significant past weather
• Self-monitoring and contamination checks for reduced maintenance

Typical applications

• Major airports and CAT III environments
• AWOS installations and runway visibility systems
• National meteorological networks and synoptic stations
• Sites requiring extended present weather reporting, including frozen/freezing precipitation

Click here for full details on the VPF-750 on Senseca UK website. 

VPF750

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Visibility is measured using a forward-scatter method and reported as MOR and EXCO across 10 m to 99.99 km. The VPF-730 also includes a dedicated backscatter receiver, improving the instrument’s ability to distinguish liquid and frozen precipitation—a key advantage for marine and exposed sites.

To minimize service visits, the VPF-730 provides automatic window contamination monitoring with staged cleaning warnings and long recalibration intervals. For integration into station architectures, it offers serial communications and can optionally interface with an ambient light sensor to support aviation workflows, while remaining resilient to nearby obstacle warning lights.

Key features

• Forward-scatter visibility measurement with MOR and EXCO output
• Wide visibility range: 10 m to 99.99 km
• Backscatter receiver for improved liquid vs frozen precipitation discrimination
• Outputs aligned to WMO present weather coding and METAR reporting
• Automatic contamination monitoring and staged maintenance warnings
• Rugged build for harsh environments; optional hood heating
• Flexible integration via serial interfaces; optional ambient light sensor interface

Typical applications

• Offshore platforms and coastal installations
• Heli-decks and marine operations
• Exposed airport sites and aviation visibility monitoring
• Meteorological networks requiring robust present weather classification

Click here for full details on the VPF-730 on Senseca UK website. 

VPF730

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The SPPM-PV control unit works with a METEODATA-4000 datalogger, enabling reliable field operation and streamlined data handling with the GEO-DataView software suite for configuration, data recovery and visualisation..

Soiling is assessed using two identical reference PV modules – a CLEAN panel kept regularly clean and a SOILED panel cleaned only with the rest of the plant – so the calculated soiling directly reflects real plant behaviour and delivers site-specific results.

Key features

• Clean & soiled reference panels for representative soiling measurement in real PV conditions.

• IEC 61724-1 processing based on short-circuit current (Isc) and panel temperature to derive a soiling index linked to energy loss.

• 8 data channels including solar geometry, panel temperatures, Isc, status and soiling index.

• High electrical safety with >1.5 kVAC galvanic isolation for safe, long-life measurements.

• Compatible with most PV technologies (best results typically with monofacial modules).

• SCADA / network integration via Modbus TCP through the METEODATA-4000 datalogger.

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Key benefits

• Very low power consumption for long-term autonomous operation.
• Universal sensor compatibility via analogue and digital interfaces (RS-232/RS-485, SDI-12, Modbus and more).
• High-capacity I/O resources designed to support complex monitoring systems.
• Embedded data processing & alarms with up to 32 measurement channels and up to 32 alarm channels.
• Global connectivity options including cellular, Wi-Fi, Bluetooth Low Energy, Ethernet and satellite interfaces.
• Faster commissioning with drag-and-drop sensor setup via the software ecosystem and online sensor library.

Typical applications

Meteorological and hydrological monitoring, solar resource & PV plant monitoring, road weather (RWIS), air quality monitoring, early warning networks and multi-parameter monitoring projects.

Software & data services

The GEO-DataView software suite for METEODATA-4000 series comprises:

• a cloud platform for simple and secure browser-based data access (Webtrans 4K),
• a desktop software for the datalogger and sensors management (Teletrans-W4K), and
• a mobile app (iOS and Android) for direct access to the device (GEO-DataLink).

For detailed user guides and software documentation, click here.

MTD4000 on Senseca Spain website – click here.

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