9.75" diameter, commercial-grade wall-mount thermometer is easily read from a distance.
Its bright markings are permanently fused to an all black background for great visibility. Glass face and molded gram are durable for indoor use. Dual F/C scale, range from -40° to 120 ° Fahrenheit. (-40° to 50° Celsius), accuracy +/-2° Fahrenheit.
2013 Master Catalog: Page 474