The REOTEMP A48PF-F43 Heavy Duty Compost Thermometer is well suited to larger compost piles where a more rugged probe is needed. With its 5/16" diameter stem, its durable all stainless steel design is perfect for an industrial composting facility. The A48PF-F43 features a large 3" hermetically sealed dial that won't fog up and is easy to read. It has a long 48" stem for larger compost piles. The dial on this model is 0 to 200°F. The A48PF-F43 comes with a 1 Year Limited Warranty and is made in the USA. This model is compatible with the REOTEMP FM-0 Probe Guard for added protection of the dial.