SMARTRO SC31B Projection Alarm Clock with Weather Station, USB Charging & Dual Alarms

The SMARTRO SC31B is a compact digital alarm clock that projects time and temperature while doubling as a mini weather station and USB charger.

Bring clearer timekeeping and simple weather awareness to your bedside. The SMARTRO SC31B combines a bright, adjustable projection with indoor/outdoor temperature sensing, barometric trend indicators, and dual alarms so you can charge a phone and wake reliably each morning. Its 3" backlit LCD with selectable color cycling and four brightness levels keeps display options flexible without overwhelming the room.

How does the projection feature work and where is it best placed?

The projection casts a soft red time and temperature readout onto a wall or ceiling at distances between about 1.5 and 4 meters (5–13 ft). You can flip the projection image 180° for different mounting positions, and the projection toggles between indoor and outdoor temperature automatically, ensuring the displayed value is relevant.

• Soft red projection for low-glare night viewing.
• Best distance: 1.5–4 m (5–13 ft) for a sharp image.
• 180° flip by holding the “-” button for 3 seconds.
• Auto-switch between indoor and outdoor temperature projection.

What alarm and snooze options does the SC31B offer?

You can program two independent alarms for weekday or weekend routines and use a snooze feature for short extra rest. The alarm will silence itself after two minutes if unattended, and any button press (except the top button) will stop the current alarm while leaving it scheduled for the next day.

• Two separate alarms for different schedules.
• Snooze adds five extra minutes of sleep per activation.
• Alarm auto-shuts after 2 minutes if not dismissed.
• Simple button press stops the alarm and preserves next-day setting.

Can this clock show weather and temperature trends?

Yes. The SC31B receives readings from a wireless outdoor sensor and displays indoor/outdoor temperatures, plus a 12-hour weather tendency based on barometric trend. The 3" LCD presents time, date, weekday and trend icons so you get context at a glance without extra devices.

• Wireless outdoor sensor included for remote temperature readings.
• Barometric trend icon predicts short-term tendency (next 12 hours).
• Displays time, date, and weekday on a single backlit screen.
• 3" LCD with selectable color cycle and 4 brightness settings.

How do power and charging work on this model?

The main unit runs from AC power to keep the projection and display active; internal batteries preserve user settings during outages. A built-in 5V/1.2A USB port lets you charge smartphones or other small devices directly from the alarm clock, reducing bedside clutter.

• AC power for continuous projection and display operation.
• Battery backup retains settings during power loss.
• 5V/1.2A USB output charges phones and small gadgets.
• Includes AC adapter and wireless sensor in the box.

Who is this for: The SMARTRO SC31B suits people who want a multi-function bedside device — those who value a clear projected time display at night, like monitoring indoor and outdoor temperatures, need two alarm schedules, and prefer a built-in USB charging port. It's also useful for travelers who need a compact, feature-rich clock with an included wireless sensor.