Clock displays AM/PM or 24-hour military time to the exact minute with ±0.01% accuracy. Noting changes is easy with triple display. Internal sensors make it ideal for use in hoods, storerooms, cleanrooms, incubators, drying chambers, and environmental cabinets. Temperature range is 32.0 to 122.0°F (0.0 to 50.0°C); resolution is 0.1° and accuracy is ±1°C. Relative humidity range is 20 to 90%; resolution is 1% RH and accuracy is ±5% RH mid-range, otherwise 8%. At the touch of a button, memory recalls highest and lowest temperature and humidity readings. Permits monitoring conditions overnight, on weekends, or any time period.