Basic Information: Case size (L x W x H) 102 x 109 x 64 mm. Weight 170 g. Case material: Case/bezel material Resin. Power supply and battery life: Approx. battery life 12 months on R6P X 2. Sensor feature: Thermometer, Measuring range -19.5 to 70C (-3 to 158F), Measuring unit 0.5C (0.5F), changeover between Celsius (C) and Fahrenheit (F). Watch Features: Alarm/hourly time signal - Beeper sound alarm. Snooze feature - Snooze function. Light - Electro-luminescent backlight. Calendar - Full auto-calendar (to year 2030). Accuracy - +/-60 seconds per month. Other features - 12/24-hour format.