Stainless-steel probe is ideal for use in soil, brewing, food processing, refrigeration, and pharmaceutical applications. Waterproof construction allows it to be used in labs, plants, wash-down areas, and the field. Manufactured to be drop-proof from 5 feet. Eliminates the dangers inherent in breakable glass and toxic mercury thermometers. Wide range covers 99 percent of routine temperature measurements. Reading is updated every second. Piercing thermometer measures the internal temperature of stored, frozen, or prepared food –58 to 536°f and –50 to 280°c temperature range. Resolution is 0.1° from –20 to 200° (1° outside this range). accuracy is ±1°c between –20 to 100°c. Waterproof, drop-proof, Piercing!