La Crosse Technology atomic projection alarm clock — Black with wireless outdoor sensor, adjustable projection & auto‑dim

La Crosse Technology’s 616-41667-INT is a bedside atomic projection alarm clock that displays the time plus indoor and outdoor temperatures projected onto your wall or ceiling for easy nighttime viewing.

This compact black alarm clock combines an atomic time base, selectable 12/24‑hour display, and a wireless outdoor sensor so you always see accurate time and temperature without reaching for your phone. Adjustable projection angle and focus let you aim crisp numbers where you want them, and multiple backlight brightness settings — including auto‑dim — keep the display readable but not distracting while you sleep. The unit automatically updates for Daylight Saving Time when set to AUTO and supports seven time zones for simple setup.

How clearly will the clock project time and temperature onto my ceiling or wall?

The projector casts large, readable digits that you can focus and rotate up to 270° so the display appears exactly where you need it. You can choose to project the time, indoor temperature, outdoor temperature, or an alternating sequence of time and temperature.

• Adjustable projection arm with 270° rotation for optimal placement
• Focus control for sharper digits at different distances
• Projection brightness control to reduce glare at night

Will the clock keep accurate time without daily adjustments?

The clock uses an atomic time signal that maintains precise time automatically, with an option to turn automatic updates on or off. If you prefer manual control, there’s also a manual set mode and support for seven named time zones, so you won’t need to reset time for Daylight Saving Time when AUTO is enabled.

• Atomic time synchronization for hands‑free accuracy
• AUTO/ON/OFF Daylight Saving Time selection
• Seven preset time zones: AST, EST, CST, MST, PST, AKT, HAT

What alarm and display customization options are available?

The alarm includes a 10‑minute snooze and a clear, 1" digit primary display. You can toggle between 12- and 24‑hour formats, set the calendar year/month/date, and choose from four white backlight levels or turn the backlight off. An auto‑dim mode helps the display remain comfortable in low light.

• 10‑minute snooze alarm with visible alarm time setting
• 12/24‑hour display selection and full weekday calendar display
• Four backlight intensity settings plus auto‑dimming feature

How does the wireless outdoor sensor work and what power does the system need?

The included TX141‑Bv3 wireless sensor transmits outdoor temperature to the clock so you can view both indoor and outdoor readings on the same display. The clock offers battery backup to preserve settings during power loss and shows low battery indicators on both the clock and sensor to avoid unexpected outages.

• Wireless outdoor temperature sensor (TX141‑Bv3) included
• Clock: optional 5.0V adapter or 3× AAA batteries for backup (batteries not included)
• Sensor: requires 2× AA batteries (not included); both units show low battery alerts

Who is this for: This projection alarm clock fits anyone wanting an easy, glanceable way to read time and temperature from bed — ideal for light sleepers, parents checking overnight nursery conditions, or homeowners who prefer an accurate atomic clock with a compact, modern design. It’s especially useful for those who want configurable projection, clear digits, and wireless outdoor temperature without a complicated setup.