NODE ONE
The remote sensor that measures the actual room temperature
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Connected
Direct L2D1 radio connection with FLOW thermostatic heads, without a gateway or LoRaWAN network
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Controlled temperature
Measures the temperature at a distance from the radiator, for more precise control and greater occupant comfort
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High-performance battery
Up to 12 years of battery life (1) with 1 replaceable lithium battery
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Temperature
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L2D1
Measure more accurately. Control more precisely. Improve comfort.
NODE complements FLOW thermostatic heads by measuring the actual room temperature, away from disturbances caused by the radiator. Thanks to its direct L2D1 wireless connection, it transmits the measurement locally to the thermostatic heads to improve control accuracy.
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Precision sensor to ensure reliable regulation and a temperature in line with the setpoint
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Regular temperature monitoring to adjust regulation more accurately over time
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Runs on a single replaceable CR2450 lithium battery to reduce maintenance interventions
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Local communication with FLOW thermostatic heads, without a gateway or LoRaWAN network
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One NODE sensor can control up to 15 thermostatic heads in the same space
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Measurement accuracy validated by an accredited metrology laboratory
Reliable measurement for effective control
In a building, the temperature measured at the radiator is often skewed by heat from the radiator itself, sunlight, or the immediate surroundings. NODE measures the actual temperature of the room to improve temperature control and comfort.
NODE: The Reference Temperature for Building Automation Systems
Much more than just a temperature sensor, NODE provides the Building Management System (BMS) with a reliable and accurate measurement of actual room conditions. When positioned in the most appropriate location, it eliminates measurement biases caused by proximity to the radiator and ensures a more accurate reference temperature for control purposes.
Thanks to this high-quality temperature data, building operators have a more accurate picture of occupants’ thermal comfort and can optimize heating strategies on a building-wide scale. NODE thus improves the accuracy of room-by-room control, enhances the performance of the building management system, and helps reduce energy consumption.
Digital logbook
QR Code and the NAVIXIS app to simplify installation and maintenance
Easier maintenance
Equipment is easier to identify and track on site
Fleet Management
NODE is designed for deployment across multiple residential units or buildings
Structured Operation
A solution designed to work with FLOW thermostatic head systems
The right sensor, in the right place
The temperature measured by thermostatic heads at the radiator may be distorted by convection, exposure to sunlight, a curtain, a shelf, or a draft.
NODE is placed directly in the room to measure a temperature that more accurately reflects actual comfort levels.
The control provided by FLOW thermostatic heads becomes more accurate, more stable, and better adapted to occupancy conditions.
More consistent comfort
Heating control is based on a temperature that more closely matches the occupants' perceived comfort level
Actual ambient temperature
The measurement is taken at a distance from the radiator, inside the room
Fewer control deviations
The thermostatic head no longer relies solely on a reading influenced by the heat from the radiator
Suitable for group use
A suitable solution for apartment buildings, hotels, offices, schools, and public facilities
Regular measurements for more precise control
NODE automatically measures the temperature every 10 minutes. This regular monitoring allows the system to adjust over time and maintain a more stable temperature in the room.
This measurement frequency helps improve consistency between the setpoint, the actual perceived temperature, and the behavior of the associated FLOW thermostatic heads.
Tracking every 10 minutes
The temperature is recorded automatically to monitor changes in the ambient conditions
More Consistent Regulation
Thermostatic heads receive regular updates to adjust the heating
Controlled Comfort
The room stays closer to the set temperature
Certified Accuracy for Commercial Buildings
NODE features a temperature sensor with an accuracy of ±0.4 °C. This performance enhances the reliability of the control system and ensures that the temperature remains within the setpoint range.
Measurement accuracy is verified by a calibration certificate issued by a COFRAC-accredited metrology laboratory, a key factor for buildings where temperature reliability is critical to operations.
Calibration Certificate
NODE has a calibration certificate issued by an independent metrology laboratory accredited by COFRAC
Accuracy: ±0.4 °C
A precise method for improving heating control
Professional Requirement
A reliable measurement solution tailored to the requirements of commercial, public, and community settings
Trust in Data
The control system relies on a reliable and verifiable temperature
L2D1: Direct wireless connection between NODE and thermostatic heads
The Nexelec L2D1 radio protocol enables direct local communication between NODE and FLOW thermostatic heads. This connection operates without a gateway or a LoRaWAN network.
NODE thus transmits the room temperature directly to the associated FLOW thermostatic heads. Control remains local, responsive, and independent of the building’s network infrastructure.
Direct Local Communication
NODE communicates directly with compatible thermostatic heads
Without a LoRaWAN network
Temperature measurement remains available locally for control purposes
Without a bridge
The L2D1 link does not require any intermediate equipment
A single sensor for multiple radiators in the same room
In some rooms, multiple radiators may be equipped with thermostatic heads.
NODE can transmit its readings to up to 15 FLOW thermostatic heads to coordinate temperature control based on a single room temperature.
This multi-radiator control system allows for better coordination of a room’s heating and prevents each radiator from regulating based on a different local reading.
Harmonized Regulation
The radiators are based on a common room temperature
Greater comfort
The room is regulated more consistently
Multi-radiator Management
A NODE can be linked to multiple FLOW thermostatic heads in the same room
Optimized Installation
A single NODE sensor can be enough to control 15 thermostatic heads in the same space
Easy installation, flexible positioning
NODE can be freestanding or wall-mounted, depending on the room’s layout. This flexibility makes it easy to place it in the right spot, away from heat sources or areas with interference.
Pairing with FLOW thermostatic heads is simplified thanks to a dedicated button, which speeds up on-site commissioning.
Freestanding or wall-mounted installation
NODE adapts to the layout of each room
Rapid deployment
A system designed for residential units, multi-unit buildings, and multi-room facilities
Simplified Pairing
Quick connection to thermostatic heads using a dedicated button
Anti-tear detection
NODE triggers an alert if the sensor is removed from its mounting base. This feature allows you to quickly identify an unexpected removal, improper handling, or a field intervention that needs to be verified.
In multi-unit buildings, this information helps maintain service quality and ensure the reliability of the measurements used for control purposes.
Withdrawal Alert
A message is triggered if the sensor is removed from its base
Targeted Maintenance
Interventions can be prioritized based on the alerts reported
Field Monitoring
Positioning errors can be detected more quickly
Up to 12 years of battery life with just one lithium battery
NODE runs on a replaceable CR2450 lithium battery and can last up to 12 years*. This long battery life reduces the need for on-site maintenance and simplifies the management of large fleets.
Choosing a replaceable battery also helps extend the product’s service life without having to replace the entire sensor.
Up to 12 years of battery life
Fewer replacement campaigns and better-planned maintenance
1 CR2450 lithium battery
A simple, compact, and replaceable power supply
Sustainable product
Replacing the battery extends the sensor's service life
Specifications
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Temperature
Res. : 0.1°C
Previous: ±0.4°C
Features
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Connectivity
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Power supply
1 CR2450 battery
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Dimensions
28 x 66 mm
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Terms of use
Indoor environment
Temperature: -20°C to +60°C
Humidity: 0% RH to 99% RH (non-condensing)
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Warranty
2 years*
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Certifications
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Set contents
1 NODE remote temperature sensor
1 CR2450 lithium battery
1 anti-theft screw
2 screws and dowels
1 adhesive fastener
Reference
| Reference | Radio |
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| X100FK | L2D1 (868 MHz) |
A solution for buildings where temperature control is essential
Measure the actual room temperature to improve occupant comfort and reduce control deviations.
Maintain a more consistent temperature in rooms, regardless of radiator location.
Improve heating control in occupied areas, meeting rooms and shared spaces.
Ensure more reliable temperature measurement in high-use environments with varying occupancy.
Provide more reliable measurement in rooms where thermal stability contributes to occupant comfort.
A sensor built to last
Nexelec’s commitment to more responsible electronics is part of a structured CSR approach, recognized by the company’s achievement of the EcoVadis Bronze medal.
NODE aligns with this approach through a replaceable battery, sustainable installation, simplified maintenance, and a design intended to extend the product’s service life.
The ease of battery replacement and fleet monitoring help minimize premature replacements and unnecessary service calls.
Designed to blend into interior spaces
With its compact size and understated design, NODE fits easily into homes, hotels, offices, and multi-unit buildings.
It can be placed anywhere or mounted on the wall to measure the temperature in the right spot, without interfering with the room’s daily use.
* Battery life is not guaranteed and may vary depending on settings, product usage, and operating conditions.