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The integrated 20-70% humidity scale enables precise setpoint monitoring
or other high-performance multi-position gas furnaces
Specifically calibrated for a 175-225F operating range
utilizing a high-contrast dual-scale dial that displays both Fahrenheit and Celsius
When the pilot light won't stay lit on a Heil Quaker or ICP furnace
Robertshaw 5500-287 Infinite Switch The integrated 20-70% humidity scaleThe Robertshaw 5500 287 Infinite Switch is a high performance 240V surface unit control engineered for precision temperature management in residential and commercial heating equipment. As a voltage sensing, parallel circuit regulator, this 240V infinite switch provides a controllable range of output power from 100W to 3600W, allowing for fine tuned thermal regulation of resistive loads. This specific model features a no dial design and is frequently
US$ 38.00
US$ 43.00
US$ 45.00
US$ 45.00