VISTA FEEL
2-in-1 LoRaWAN temperature and humidity sensor with COFRAC-calibrated accuracy
VISTA FEEL is a battery-powered LoRaWAN temperature and humidity sensor that measures indoor temperature (±0.2 °C) and relative humidity (±2 % RH) to monitor occupant comfort, heating performance and conditions linked to condensation, damp and mould.
Data is sent wirelessly over LoRaWAN (EU868, the frequency plan used in the UK and Ireland) for remote monitoring in NAVIXIS or integration into your Building Management System (BMS) as BACnet points via a compatible gateway.
Designed for offices, schools, hotels and social housing, VISTA FEEL offers up to 15 years* of battery life (ULL version), contactless NFC set-up and FUOTA V2 remote firmware updates. CE and UKCA marked.
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Temperature and humidity
±0.2 °C and ±2 % RH accuracy to monitor indoor comfort and damp risk in buildings
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Up to 15 years of battery life*
One replaceable CR123 lithium battery for long-term monitoring and minimal maintenance (up to 10 years* for the standard version)
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Wireless connectivity
LoRaWAN for remote monitoring and BMS integration, plus L2D1 direct device-to-device communication with compatible Nexelec products
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Temperature
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Humidity
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LoRaWAN
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L2D1
Measure temperature. Monitor humidity. Improve comfort.
VISTA FEEL combines two essential measurements in a single LoRaWAN sensor – temperature and humidity – for accurate, long-term monitoring of indoor conditions.
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Long battery life (up to 15 years*) to limit battery changes and reduce maintenance visits
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Direct radio communication with compatible Nexelec devices, without a gateway or LoRaWAN network
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Sensor firmware can be updated over LoRaWAN, with no site visit needed
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Quick, simple set-up from a smartphone to speed up on-site deployment
LoRaWAN temperature and humidity sensor for building management systems
In buildings, temperature and humidity are two essential factors for occupant comfort, healthy homes and efficient building services.
Monitoring them regularly shows how indoor conditions change, helps identify temperature swings, under-heated rooms and persistently high humidity – a key risk factor for condensation, damp and mould – and provides useful information for improving energy efficiency.
VISTA FEEL combines these two measurements in a 2-in-1 LoRaWAN environmental sensor. The data is transmitted wirelessly and can be centralised in NAVIXIS or integrated into the Building Management System (BMS).
Two key measurements to understand indoor conditions
VISTA FEEL combines temperature and humidity measurement in a single 2-in-1 LoRaWAN sensor.
Its measurement accuracy is backed by a calibration certificate from an independent COFRAC-accredited metrology laboratory, so you can rely on the data to monitor indoor conditions, identify variations and support the operation of commercial buildings and multi-occupancy housing.
Temperature
Accurate indoor temperature monitoring with ±0.2 °C accuracy
Humidity
Relative humidity measurement with ±2 % RH accuracy
Certified calibration
Sensor calibration certificate issued by an independent COFRAC-accredited metrology laboratory
Long-term measurement reliability
Guaranteed consistency and accuracy, with no measurement drift over time
L2D1: direct device-to-device wireless communication between Nexelec products
VISTA FEEL incorporates Nexelec’s L2D1 radio protocol, which enables direct, device-to-device (D2D) local communication between compatible products.
This link works independently of the LoRaWAN infrastructure and needs no gateway for local communication between paired devices.
VISTA FEEL therefore offers two communication options: L2D1 for direct exchanges between compatible devices, and LoRaWAN for remote data collection.
Direct local communication
VISTA FEEL communicates directly with compatible Nexelec devices (device-to-device)
Local L2D1 link without a gateway
The local L2D1 link communicates directly with compatible Nexelec devices. Remote LoRaWAN monitoring and BMS integration require the appropriate network infrastructure and a compatible gateway.
Without a LoRaWAN network
L2D1 communications remain available locally, without going through the LoRaWAN network
FUOTA V2 remote firmware updates – no site visit needed
VISTA FEEL can receive remote firmware updates over the LoRaWAN network using FUOTA V2 (Firmware Update Over The Air), a mechanism standardised by the LoRa Alliance. Your installed base can benefit from fixes, improvements and new features without routine site visits.
With cyber threats targeting connected devices on the rise, firmware updates play a critical role in smart building cybersecurity. FUOTA V2 makes it possible to deploy security patches remotely, remediate potential vulnerabilities and keep devices up to date throughout their service life.
Based on an open standard, FUOTA V2 works with the many LoRaWAN infrastructures and solutions on the market that support it, with no lock-in to a proprietary ecosystem.
Remote updates help strengthen IoT device security, extend the operational life of VISTA FEEL and simplify maintenance of large-scale deployments.
Firmware improvements
Supported firmware fixes and improvements can be deployed through FUOTA V2 when updates are made available.
Open standard
FUOTA V2 follows a LoRa Alliance specification. Remote firmware updates require compatible LoRaWAN infrastructure that supports FUOTA V2.
Simplified maintenance
Remote firmware updates over compatible LoRaWAN infrastructure help minimise on-site maintenance visits.
Up to 15 years* of battery life for minimal maintenance
Powered by a single replaceable CR123 lithium battery, VISTA FEEL is designed for long-term monitoring of indoor conditions with minimal maintenance: up to 10 years* for the standard version (X420LS) and up to 15 years* for the ULL version (X420LS_ULL).
Long battery life means fewer battery changes, fewer maintenance visits and lower operating costs – particularly when deploying large numbers of sensors across commercial buildings and social housing stock.
1 CR123 lithium battery
Simple, replaceable and inexpensive power supply
Up to 15 years*
Fewer battery replacement campaigns with the ULL version
Fewer maintenance visits
Long battery life can reduce the frequency of battery replacement visits in occupied buildings.
Controlled Maintenance
Battery life suitable for large-scale deployments
Quick, easy installation in any building
VISTA FEEL is designed to make temperature and humidity sensors simple to deploy indoors, whether you are equipping a single room or rolling out several hundred devices.
Its compact design fits discreetly into offices, schools, hotels, homes and public buildings. It can stand freely or be wall-mounted with screws and wall plugs or the adhesive pad supplied, with no mains power or communication cabling.
Reinforced adhesive
Thick adhesive suitable for smooth and rough surfaces, providing long-lasting adhesion and requiring minimal maintenance
Mounting with screws and wall plugs
Wall mounting with screws and wall plugs provides a secure fixing. Select suitable fixings for the wall material and follow the installation instructions.
Anti-theft protection
Lockable base with anti-theft screws
Tamper detection
An alert is triggered if the product is removed from its mounting base.
NAVIXIS: building-wide monitoring platform
With NAVIXIS, Nexelec’s IoT platform, the data collected by VISTA FEEL is centralised and available remotely to simplify the monitoring of indoor conditions.
The platform lets you view temperature and humidity readings, track changes over time and spot variations between rooms, homes and buildings.
For facilities managers, housing providers and building operators, NAVIXIS makes it easier to monitor sites, analyse environmental data and manage a sensor network spread across multiple buildings.
Connect and control your equipment
Facilitates remote management and control of IoT devices and LoRaWAN gateways
Dashboard and graphical data display
Provides an intuitive interface for monitoring key indicators in real time and making it easier to interpret the data collected
Data export and exchange
API connection, webhook notifications and simple data export in .pdf or .csv format
User rights management
Access control to ensure secure and appropriate use of the platform's functionalities
Fast NFC configuration for simple deployment
VISTA FEEL features contactless NFC technology, so the sensor’s settings can be configured from a compatible smartphone.
Local configuration makes it easy to tailor settings to each environment and simplifies commissioning.
For large-scale installations, NFC configuration speeds up the deployment of many temperature and humidity sensors.
NFC Settings
Contactless adjustments via a smartphone
Customisable settings
Adjust measurement and transmission intervals and indicator lights to suit the building and deployment.
Without power
NFC configuration directly through the packaging, without unpacking the sensor or using its battery
Specifications
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Temperature
Resolution: 0.1 °C
Accuracy: ±0.2 °C
Measurement range: -30 °C to +70 °C
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Humidity
Resolution: 0.5 % RH
Accuracy: ±2 % RH
Measurement range: 0–100 % RH
Features
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Connectivity
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Power supply
1 replaceable CR123 lithium battery
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Dimensions
28 x 66 mm
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Operating conditions
Indoor use
Temperature: -20 °C to +50 °C
Humidity: 0–99 % RH (non-condensing)
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Warranty
2 years*
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Certifications
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What’s in the box
VISTA FEEL sensor
1 CR123 lithium battery
Mounting base
Screws and wall plugs
Adhesive pad
References
| Reference | LoRaWAN | Battery life | Colour |
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| X420LS | EU868 | Up to 10 years* | White |
| X420LS_BCK | EU868 | Up to 10 years* | Black |
| X420LS_ULL | EU868 | Up to 15 years* | White |
| X420LS_ULL_BCK | EU868 | Up to 15 years* | Black |
Use cases: comfortable, healthy and well-managed buildings
Monitor temperature and humidity across workspaces to improve occupant comfort and fine-tune heating and cooling control
Monitor temperature and humidity classroom by classroom to understand indoor conditions and provide a comfortable environment for pupils and staff
Centrally monitor temperature and humidity with a compact, battery-powered sensor to keep guest rooms and shared spaces comfortable
Remotely monitor temperature and humidity in homes to help spot under-heating and conditions linked to condensation, damp and mould, and centralise the information needed to manage your housing stock
A connected temperature and humidity sensor for building management systems (BMS/BACnet)
VISTA FEEL is a 2-in-1 LoRaWAN environmental sensor that measures temperature and humidity to simplify the monitoring and management of indoor conditions.
Using LoRaWAN wireless communication, it collects measurements remotely for integration into the Building Management System (BMS). Paired with a compatible LoRaWAN-to-BACnet gateway such as Nexelec MASTER PRO, temperature and humidity data can be converted into BACnet/IP points and used by controllers and building management systems.
This information helps regulate heating, ventilation and air conditioning, and makes it easier to monitor indoor conditions across different areas.
If you also need to monitor ventilation, VISTA RISE adds CO₂ measurement to temperature and humidity in a 3-in-1 LoRaWAN sensor.
Available in black or white
VISTA FEEL is available in two colours, black and white, to suit the look and practical requirements of any interior.
With its compact, minimalist design, this 2-in-1 LoRaWAN temperature and humidity sensor blends discreetly into offices, schools, hotels, public buildings and apartment blocks while monitoring indoor conditions accurately.
Two finishes. The same technology. More freedom for your projects.
A sensor built to last
Nexelec’s commitment to more responsible electronics is part of a structured CSR approach, recognised by an EcoVadis Bronze medal.
VISTA FEEL reflects this approach with a replaceable battery, durable design, easy maintenance and a design intended to extend the product’s service life.
Simple battery replacement and fleet monitoring help minimise premature replacements and unnecessary maintenance visits.
Designed to blend into interior spaces
With its compact size and understated design, VISTA FEEL fits easily into homes, hotels, offices and multi-occupancy buildings.
It can be placed freely or wall-mounted to measure temperature and humidity in the right spot, without interfering with the everyday use of the room.
Frequently Asked Questions
Our experts answer your questions
VISTA FEEL by Nexelec is a 2-in-1 LoRaWAN temperature and humidity sensor for smart buildings and housing. It measures indoor temperature (±0.2 °C) and relative humidity (±2 % RH), with a calibration certificate from a COFRAC-accredited metrology laboratory, and sends its data over LoRaWAN for remote monitoring or integration into a building management system (BMS).
It is available in a standard version with up to 10 years of battery life and a ULL version with up to 15 years, both powered by a replaceable CR123 lithium battery. VISTA FEEL operates on the EU868 LoRaWAN frequency plan used in the UK and Ireland and is CE and UKCA marked.
VISTA FEEL measures two parameters:
- Temperature: -30 °C to +70 °C, resolution 0.1 °C, accuracy ±0.2 °C
- Relative humidity: 0 to 100 % RH, resolution 0.5 % RH, accuracy ±2 % RH
VISTA FEEL measures temperature with an accuracy of ±0.2 °C (resolution 0.1 °C) and relative humidity with an accuracy of ±2 % RH (resolution 0.5 % RH). Each sensor comes with a calibration certificate issued by an independent COFRAC-accredited metrology laboratory, and measurements remain consistent over time with no measurement drift.
Yes. VISTA FEEL measures indoor temperature and relative humidity, the two conditions that drive condensation. Persistently high humidity combined with low indoor temperatures is a warning sign of condensation, damp and mould, and remote readings help housing providers spot at-risk homes early and prioritise inspections.
In England, Awaab’s Law has required social landlords since 27 October 2025 to investigate and act on significant damp and mould hazards within fixed timescales. VISTA FEEL supports this monitoring, but on its own it does not demonstrate compliance with housing regulations.
Yes. All VISTA FEEL references (X420LS and X420LS_ULL in white, X420LS_BCK and X420LS_ULL_BCK in black) use the EU868 LoRaWAN frequency plan (863–870 MHz), which is the plan used for LoRaWAN in the United Kingdom and Ireland. The sensor can connect to a private LoRaWAN gateway installed on site or to a LoRaWAN network that covers the building.
VISTA FEEL is CE and UKCA marked.
Yes. VISTA FEEL transmits its temperature and humidity measurements over LoRaWAN. Using a compatible gateway such as Nexelec MASTER PRO, the data can be converted into BACnet/IP points and integrated into a building management system (BMS).
The data can also be used in the NAVIXIS platform, which provides an API and webhooks for third-party systems.
VISTA FEEL is available in two versions:
- VISTA FEEL standard (X420LS, X420LS_BCK): up to 10 years of battery life
- VISTA FEEL ULL (X420LS_ULL, X420LS_ULL_BCK): up to 15 years of battery life
Both versions run on a single replaceable CR123 lithium battery. Actual battery life depends on the configuration, transmission frequency and operating conditions; it is not guaranteed.
VISTA FEEL can stand freely or be wall-mounted with screws and wall plugs or with the supplied adhesive pad. For wall-mounted installations, its lockable base with anti-theft screws and its tamper detection keep the sensor secure. No mains power or communication cabling is required.
The L2D1 (Link to Device) radio link is a wireless communication technology that lets two compatible Nexelec devices communicate directly with each other, without a gateway or a LoRaWAN network.
It enables local, device-to-device (D2D) data exchange, in particular to simplify how devices are paired and operate together within a connected building.
This technology provides direct communication with a long radio range, which simplifies installation and reduces dependence on the network infrastructure.
Yes. VISTA FEEL supports FUOTA V2 (Firmware Update Over The Air), a mechanism standardised by the LoRa Alliance. When updates are made available, fixes, security patches and improvements can be deployed remotely over a compatible LoRaWAN infrastructure, without visiting each sensor.
VISTA FEEL is a 2-in-1 LoRaWAN sensor that measures temperature and humidity. VISTA RISE is a 3-in-1 LoRaWAN sensor that adds CO₂ measurement and a green, amber and red indicator light to monitor ventilation and indoor air quality.
Choose VISTA FEEL for comfort, heating and damp monitoring, and VISTA RISE when you also need to track CO₂ levels. For occupancy and light level data as well, VISTA WAVE combines all five measurements.
* Battery life is not guaranteed and may vary depending on the product’s settings and usage.