Key benefits - Keeps accurate time with a calendar that covers 2000 to 2099, displaying year, month, day, hour, minute and weekday. Supports 12/24 hour formats and Celsius/Fahrenheit conversion, with 1-minute alarm, 5-minute nap, and a key tone. - Real-time vehicle monitoring and environmental alerts: digital display of current car voltage, plus max/min temperature and humidity alarms, helping you stay informed about cabin conditions. - Weather reference at a glance: weather forecast feature provides additional context for planning your day. - Easy to read in any environment: large LCD screen with a backlight that activates with a tap, suitable for low-light conditions. - Reliable power options: dual power supply mode with car power compatibility to ensure continuous operation in various situations. If the backlight is dim or temperature readings seem inaccurate, using the car power supply is recommended. Features - Time function: Calendar from 2000 to 2099; time display includes year, month, day, hour, minute and weekday. Supports 12/24-hour system conversion and ℃/℉ conversion. Includes 1-minute alarm, 5-minute nap and key tone. - Multi-function application: real-time monitoring of car voltage with a digital display of current voltage; maximum and minimum temperature/humidity alarms; weather forecast (for reference). - LCD backlight: tap the screen to illuminate the display, allowing you to view the thermometer or clock in low light; large screen display for easy reading. - Dual power supply mode: supports car power supply to ensure sufficient power in all situations. If the backlight is dim or temperature measurement is large, using the car power supply is recommended. Power and compatibility - Dual power supply mode: designed to operate with car power supply for reliable performance when needed. - Compatibility: suitable for use in vehicles via car power, and for general indoor use with its backlit LCD display. Use scenarios - Driving and commuting: monitor your vehicle’s voltage in real time, keep track of ambient temperature and humidity, and rely on accurate timekeeping for schedules and alerts. The weather forecast helps plan routes and timings. - Home or office desk: use as a large, easy-to-read clock with backlight for low-light environments; the calendar and alarm features support daily planning. - Garage, workshop or travel: the car power option provides dependable power when away from standard outlets, ensuring the display remains functional and readable during work or travel. The temperature/humidity alarms help you manage storage or sensitive equipment.