: Move the calendar to an interior wall away from electronics, vents, and direct sunlight. Allow 30 minutes for the sensor to recalibrate to the room's true environment.
When the alarm goes off, press the LIGHT/SNOZE button on the back or top. The alarm will silence and ring again in a few minutes. To turn the alarm off completely for the day, press any other button. 4. Customizing Display Preferences
Document version 2.1 – Last updated October 2025. Instructions applicable to firmware version 3.0.4 and above.
Softens and dims at 7:00 PM (19:00) to minimize room glare. Color Screen Calendar Model 2159t Instructions
Slide the plastic kickstand into the designated slot on the lower back panel until it clicks.
The Model 2159t does not run purely on batteries; it requires a continuous connection to an electrical outlet using the provided AC adapter. The internal coin-cell battery serves strictly as a memory backup to retain your settings during a power outage. Step-by-Step Initial Setup
Press the DOWN button to toggle between Celsius (°C) and Fahrenheit (°F). : Move the calendar to an interior wall
Tap again to transition to the alarm minutes, and use UP or DOWN to change them. Press SET to finalize the time.
Color Screen Calendar Model 2159t Instructions: A Comprehensive Guide
The built-in sensors require up to 30 minutes to adjust to room temperature after first being plugged in. Ensure the clock is not placed near heating vents, air conditioners, or drafty windows. The alarm will silence and ring again in a few minutes
buttons to adjust the values for the hour, minute, year, and date in sequence. Format Selection : During setup, you can typically toggle between 12-hour and 24-hour formats , as well as switch temperature readings between Celsius (°C) and Fahrenheit (°F) Alarm Settings
A: The current firmware does not support multiple user profiles, but you can create different event color categories for family members.