
Red status ring
The upper ring gives the TRV an immediate, recognizable operating signal at the radiator.
TL20 hydronic thermostatic radiator valve with a distinctive red circular status ring.
Built for connected heating projects that need a clear local temperature display, durable white PC housing and room-level control across homes, offices, apartments and hotel rooms.

The TL20 Z-Wave version combines a compact white thermostatic valve body with a front digital display and a visible red status ring. It is positioned for hydronic radiator projects where the room device, gateway and control experience must work together.

The upper ring gives the TRV an immediate, recognizable operating signal at the radiator.

The network reference shows the relationship between app, gateway and multiple radiator valves.

A compact format for radiator heating in residential, office and hospitality spaces.
The front display and red ring make the device easy to identify at the radiator. The Z-Wave-oriented configuration is suited to connected-home and property-wide room control when paired with the required gateway and control ecosystem.


Before deployment, confirm the existing radiator valve body, adapter requirement, gateway compatibility and electrical configuration for the selected project.


Share your radiator connection, property type, gateway requirement, quantity and delivery schedule with the TELIN team.