This 20-inch waterproof probe thermometer is suitable for placing in large drums, narrow beakers/flasks, deep vats, and pails. For use in industrial plants, pharmaceuticals, and food preparation, the complete unit (meter/probe/10-foot cable) is waterproof (IP67) to depth of 10 feet. Stainless-steel spring-loaded holder mounts anywhere for indoor/outdoor use. Accurately reads temperatures from 14.0 to 230.0°F (-10.0 to 110.0°C) with only one inch penetration of stainless-steel probe. Resolution is 14.0 to 230.0°F (-10.0 to 110.0°C) and accuracy is ±1°C.