The REOTEMP A36PF-D43 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 dial on is 0 to 200°F & -10 to 90°C. The A36PF-D43 features a large 3″ hermetically sealed dial that won’t fog up. The A36PF-D43 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.