![Tekmar_519_APNS.jpg](https://dsg.widen.net/content/8ns8mi8xoi/jpeg/Tekmar_519_APNS.jpeg?w=300&h=300&position=c&color=ffffffff&quality=100&u=bwtmsc)
- The Radiant Thermostat 519 accurately controls the room and/or floor temperature for a hydronic heating zone using Pulse Width Modulation (PWM) technology. Simple up and down buttons and a display with large type make this thermostat easy to read and use. A Slab Sensor 079 is included to measure floor temperature to protect the floor from overheating and enhance comfort. This easy to install thermostat is a direct replacement for the Tekmar® Thermostat 509. An optional Adaptor Plate 012 is available which allows the thermostat to be installed onto a single gang electrical box.