The only universal Talking Digital Thermometer that has a clear female voice. Apply the tip of the probe to the subtance to be measured and you'll get voice reading in a few seconds. Temperature ranges from -4F to +248F. Easy to use. Size: Length 9 1/2" & Probe length 5". Operates on 1 CR2032 Lithium Battery (included). Check the Bath water and those hard to see applications. Product dimensions (imperial): 0.05 inch H x 9.5 inch L x 1.75 inch W Product dimensions (metric): 1.27 mm H x 241.30 mm L x 44.45 mm W