The Thermostat 518 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 518 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. An optional Adaptor Plate 012 is available which allows the thermostat to be installed onto a single gang electrical box.

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Tekmar® Thermostat, NTC Thermistor Sensor, 1 Stage, 10 to 30 VAC/VDC, Backlit, NEMA 1 Enclosure, White, 3 in W x 15/16 in D x 3-11/16 in H, Import

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