




LoRaWAN Thermostatic Radiator Valves (TRV)
Leverage automatic and intelligent heating control across your building, based on highly accurate monitoring of ambient room temperature









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Enless LoRaWAN Thermostatic Radiator Valve (TRV)
Take Control of your Radiators
Take action with the Enless LoRaWAN thermostatic valve. Designed for use with your hydronic radiators, it strictly adheres to the heating setpoints defined by your BMS. The LoRaWAN protocol not only allows you to monitor the room temperature but, more importantly, to receive your control commands remotely. Reduce your buildings’ energy bills and improve occupant comfort with the Enless thermostatic valve.
Product Description & Topology
Thanks to the LoRaWAN protocol, the valve offers exceptional radio performance, with a range of over 5 kilometers in open terrain. Operating in LoRaWAN Class A, it can receive new commands (such as a setpoint update or an instruction regarding the motor’s opening percentage) immediately after each data transmission, ensuring efficient control.
Supplied with three 1.5V AA (Li/FeS2) batteries, the Enless LoRaWAN thermostatic valve guarantees a battery life of up to 5 years, depending on your usage patterns. Replacing the batteries is very simple and does not require removing the valve from the radiator.
The valve incorporates a high-precision stepper motor, ensuring micrometer-level piston positioning. This precise flow control guarantees linear and responsive temperature regulation, eliminating any sudden temperature fluctuations.
Control Options
The BMS Commands the Valve Opening Percentage
In this control mode, the BMS takes control of the valve by sending commands to dictate its opening percentage. All control logic is thus centralized within the BMS, transforming the thermostatic head into a simple actuator. It is then up to the system integrator to configure this logic by defining the various operating scenarios.
This approach allows each radiator to be coordinated with other equipment to optimize the building’s overall energy performance.
The BMS sends a setpoint temperature to the valve, which uses it’s control algorithm to maintain it
In this operating mode, the BMS transmits the desired room setpoint temperature to the valve. The valve then uses its own algorithm to control the temperature. The thermostatic head continuously compares this received setpoint with the ambient temperature it measures, automatically adjusting its opening independently.
This approach reduces the burden of setting up control scenarios while ensuring excellent responsiveness to local temperature fluctuations.

Technical Specifications
- Supported Protocols: LoRaWAN
- LoRaWAN Version: Version 1.0.4 – RP002-1.0.3
- LoRaWAN Class: Class A
- Radio frequency: EU868
- Dimensions: W 57 x H 90 x D 57 mm
- IP rating: IP40
- Default ring: M30 x 1.5
- Accessory Adapters: RA, RAV, RAVL, M28x1.5, CAL, GIA (adapters sold separately)
- Vandal-proof protection: Protective case (accessory)
- Engine Control: Upon receiving a downlink signal or manually via the temperature selector
- Temperature display: LEDs
- Temperature sensor accuracy: 0.1°C
- Child lock: Yes
- Transmission frequency: 15 minutes (default) – Configurable
- Power Supply: 3x AA batteries (Li/FeS2) 1.5V (can also be powered by alkaline batteries)
- Battery life: 3 years with a cycle every 15 minutes and summer mode activated for 5 months per year
- Replacement battery: AA Battery
- Diagnostic lights: 3 lights
- Certifications: CE, UKCA, LoRaWAN
Benefits of LoRaWAN for Smart Building and BMS Integrations:
Strong interoperability across diverse IoT devices and platforms
Secure, bi-directional communication suitable for building automation use cases
Flexible integration with BMS/MSI platforms for real-time monitoring and analytics
Scalable architecture that grows with building needs
Ideal for condition-based monitoring (air quality, occupancy, energy, leak detection, etc.)
Long-range coverage for hard-to-reach and large areas
Low power consumption, enabling multi-year battery life for sensors
Cost-effective deployment with minimal infrastructure
Easy retrofitting without pulling cables or disrupting operations
High device density for large-scale sensor networks








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