Remote temperature sensor for accurate room regulation

NODE ONE is a remote temperature sensor designed to improve the regulation accuracy of FLOW thermostatic radiator valves. Installed away from the radiator, it measures the actual room temperature and provides a more representative reading of occupant comfort.

In a room, the temperature measured directly at the radiator can be affected by heat convection, sunlight, curtains, shelves or air drafts. NODE ONE helps FLOW thermostatic radiator valves regulate heating based on a more reliable room temperature.

Direct L2D1 communication with FLOW heads

NODE ONE communicates directly with FLOW thermostatic radiator valves using the Nexelec L2D1 wireless radio protocol. This local communication works without gateway and without LoRaWAN network.

The temperature measurement remains available locally for regulation, making the system more responsive and independent from the building’s network infrastructure.

Precise and regular temperature measurement

NODE ONE automatically measures temperature every 10 minutes. This regular monitoring helps FLOW thermostatic radiator valves adjust heating more consistently over time.

With 0.1 °C resolution and ±0.4 °C accuracy, NODE ONE provides reliable temperature data for professional buildings. Its measurement accuracy is validated by a calibration certificate issued by a COFRAC-accredited metrology laboratory.

One sensor for up to 15 FLOW heads

In rooms equipped with several radiators, NODE ONE can control up to 15 FLOW thermostatic radiator valves in the same space.

This multi-radiator management allows several radiators to rely on the same room temperature reference, helping harmonize heating regulation and improve comfort.

Easy installation and long battery life

NODE ONE can be installed free-standing or wall-mounted depending on the room configuration. Pairing with FLOW thermostatic radiator valves is simplified with a dedicated button.

It operates with 1 replaceable CR2450 lithium battery and can reach up to 12 years of battery life depending on settings and usage conditions. The tamper removal detection function sends an alert if the sensor is removed from its mounting base.

Features of the NODE ONE remote temperature sensor

Connectivity

L2D1
Direct wireless radio link with FLOW thermostatic radiator valves, without gateway and without LoRaWAN network.

Temperature measurement

Remote temperature sensor
NODE ONE measures the actual room temperature away from the radiator to improve heating regulation accuracy and occupant comfort.

Regular temperature monitoring
Automatic temperature measurement every 10 minutes to maintain consistent regulation over time.

Measurement accuracy
High-precision sensor with 0.1 °C resolution and ±0.4 °C accuracy.

Calibration certificate
Temperature measurement accuracy validated by a COFRAC-accredited metrology laboratory.

Regulation

Multi-radiator management
One NODE ONE sensor can control up to 15 FLOW thermostatic radiator valves in the same space.

More reliable regulation
By measuring temperature away from the radiator, NODE ONE helps reduce measurement errors caused by convection, sunlight, curtains or air drafts.

Installation

Simplified pairing
Quick association with FLOW thermostatic radiator valves using a dedicated button.

Free-standing or wall-mounted installation
NODE ONE can be installed freely in the room or fixed to a wall depending on the building layout.

Digital tracking log
QR code and NAVIXIS software platform simplify installation and maintenance of NODE sensors and FLOW thermostatic radiator valves at scale.

Power supply

1 replaceable CR2450 lithium battery
Compact and easy-to-maintain power supply.

Battery life
Up to 12 years of battery life depending on product settings and usage conditions.

Security

Tamper removal detection
Triggers an alert message if the NODE ONE sensor is removed from its mounting base.

Usage environment

Indoor use
Designed for collective housing, hotels, offices, schools, public buildings, healthcare facilities and tertiary buildings.

Operating conditions
Operating temperature: -20 °C to +60 °C.
Humidity: 0% RH to 99% RH, non-condensing.

Compatible ecosystem

FLOW
Compatible with FLOW thermostatic radiator valves.

NAVIXIS
Compatible with the NAVIXIS platform to simplify installation, identification and maintenance of equipment fleets.