The Tekmar 518 Thermostat accurately controls the room 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. The Tekmar 518 Thermostat automatically detects a single auxiliary sensor to measure either outdoor floor or remote room temperature. This easy to install thermostat is a direct replacement for Tekmar Thermostats 507 and 508.
External link | Downloadable Files
TEKMAR web site
Product Spec Sheet
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