Includes 3V dry cell battery Requires no external power supply Waterproof, rugged design Easy-to-read, clear vivid display Large buttons make changing functions easy, even when wearing gloves Features a convenient clock Internal memory records peak readout Temperature gauge updates data every second, with a range display of 32-356?F (0-180?C) Gauge body measures 78 mm L x 40 mm W x 20 mm H. TEMP GAUGE 3V BATTERY
