Wall-mount temperature sensor NODE ONE

LoRaWANwirelessradio

Short description
NODE ONE by Nexelec is a remote temperature sensor that measures representative room temperature away from the radiator and transmits readings locally to FLOW thermostatic heads via the proprietary L2D1 radio protocol, without gateway or LoRaWAN.

Key benefits

• Direct connection — L2D1 radio link with FLOW thermostatic heads; no gateway required
• Representative measurement — positioned away from heat sources for improved regulation accuracy and occupant comfort
• Long-life replaceable battery — 1 × CR2450, up to 12 years depending on usage and settings
• Multi-head support — one NODE can serve up to 15 FLOW heads in the same space
• Optimised data flow — temperature transmitted to the cloud via the thermostatic head when relevant
• Flexible installation — freestanding or wall-mounted; quick pairing with a dedicated button
• Anti-tear detection — alerts when removed from its mounting base
• Digital logbook — QR Code and NAVIXIS app for installation and maintenance tracking

How it works
NODE measures ambient temperature at regular intervals (automatic measurement every 10 minutes) and sends values locally to FLOW thermostatic heads over L2D1 (direct local communication). This approach keeps control responsive and independent from building networks.

Measurement & validation
Precise temperature sensor with 0.1 °C resolution and validated accuracy ±0.4 °C. Calibration certificate available from a COFRAC-accredited metrology laboratory.

Reference
Reference | Radio
X100FK | L2D1 (868 MHz)

Set contents

• 1 NODE remote temperature sensor
• 1 CR2450 lithium battery
• 1 anti-theft screw
• 2 screws and dowels
• 1 adhesive fastener

Use cases
Suitable for apartments, hotels, offices, schools, public buildings and any indoor environment requiring accurate room temperature measurement for comfort and energy-optimised heating control.

Specifications

• Connectivity: Nexelec L2D1 (direct local communication with FLOW thermostatic heads)
• Temperature resolution: 0.1 °C
• Temperature accuracy: ±0.4 °C (calibration certificate available)
• Power supply: 1 × CR2450 lithium battery (replaceable)
• Battery life: up to 12 years (depends on configuration, usage and operating conditions)
• Dimensions: 28 × 66 mm
• Operating environment: indoor; temperature range −20 °C to +60 °C; humidity 0% RH to 99% RH (non‑condensing)
• Warranty: 2 years
• Certifications: CE, UKCA
• Multi-head support: up to 15 FLOW thermostatic heads per NODE
• Features: anti-tear detection, freestanding or wall-mounted installation, simplified pairing button, digital logbook (QR Code + NAVIXIS app)