Uzoli EM3390 Weather Station User Manual

2. Features

• WWVB Radio control time function
• Perpetual Calendar Up to Year 2099
• Day of week in 3 languages: English, French, and Spanish
• Time in 12-hour or 24-hour format
• Two daily alarms
• Snooze function (OFF or 5~60min)
• Sunrise and sunset time (select city)
• Moon phases and tides
• Humidity: Indoor & Outdoor measurable range: 20%RH ~ 95%RH
• Temperature:
  • Indoor temperature measurement ranges: 15°F ~122°F (-9.9°C~50°C)
  • Outdoor temperature measurement ranges: -40°F~ 158°F (-40°C~70°C)
  • Temperature alternatively in °F or °C.
• Minimum/maximum display for air humidity and temperature
• Display of comfort
• Display of indoor mold risk
• Indoor and outdoor temperature and humidity upper and lower limit alert and frost warning
• Wireless Outdoor Sensor:
  • Wall Mount or Table Stand
  • 433.92MHz RF transmitting frequency
  • 60 meters transmission range in an open area
  • Up to 3 wireless outdoor sensors can be connected.
• Atmospheric pressure:
  • Atmospheric pressure measurement ranges: 17.72 inHg to 32.50 inHg
  • Pressure alternatively in inHg or hPa/mb
• Weather forecast: Display with 6 weather icons.
• Power Supply:
  • Display Console: Battery: 2 x LR6 AA; Equipment power input: DC 5V 1.2A (dedicated power adapter)
  • Wireless Outdoor Sensor: Battery: 2 x LR6 AA
• USB output: You can plug in the USB cable to charge other products.

Note: The wireless remote sensor can work at -30°C to +70°C. Please choose the right battery according to the limit temperature of the wireless sensor.

Alkaline zinc manganese battery can work at -20°C to +60°C. Polymer lithium ion rechargeable battery can work at -40°C to +70°C.

3. Weather Station Appearance

3.1 Layout of display console.

The display console features various indicators labeled A1 through A19:

• A1: Week Day
• A2: Month and date
• A3: Indoor Humidity
• A4: Mold Risk of Indoor
• A5: Indoor Temperature
• A6: Time
• A7: Atmospheric pressure
• A8: Humidity of Wireless Remote Channel 3
• A9: Weather forecast
• A10: Temperature of Wireless Remote Channel 3
• A11: Temperature of Wireless Remote Channel 2
• A12: Temperature of Wireless Remote Channel 1
• A13: Humidity of Wireless Remote Channel 1
• A14: Humidity of Wireless Remote Channel 2
• A15: Selected city
• A16: Moon phase
• A17: Tide level
• A18: Sunrise time
• A19: Sunset time

3.2 Icon of display console.

The display console uses the following icons:

• : Wireless Remote Channel 1
• : Wireless Remote Channel 2
• : Wireless Remote Channel 3
• : Wireless reception sign
• : low battery sign
• MAX: Temperature or humidity maximum record symbol
• MIN: Temperature or Humidity Minimum Recording Symbol
• : Temperature or humidity rising trend symbol
• : Temperature or humidity falling trend symbol
• HI: High temperature or humidity alarm symbol
• LOA: Low temperature or humidity alarm symbol
• : frost warning symbol
• DRY: Dry symbols for comfort
• COM: Comfort symbol for comfort
• WET: Wet symbol for comfort
• : Radio Control Time Reception Symbol
• DST: daylight saving time sign
• : Backlit night mode sign
• : alarm 1 icon
• : alarm 2 icon
• ZZ: snooze sign
• M-F: alarm repeat Monday to Friday sign
• S-S: alarm repeat Saturday and Sunday sign
• IN: Indoor sign where the equipment is located

3.3 Buttons and power.

The device has the following buttons and power inputs:

• B1: "-/zZ" touch field
• B2: Hanging holes
• B3: "+" button
• B4: "-" button
• B5: "▲" button
• B6: "▼" button
• B7: "MODE" button
• B8: "ALARM" button
• B9: "SNOOZE" button
• B10: USB charger output socket
• B11: Power supply socket
• B12: Support frame
• B13: Battery compartment

3.4 Wireless remote sensor.

The wireless remote sensor has the following components:

• C1: LCD display - Temperature
• C2: LCD display – Humidity
• C3: Transmit signal LED
• C4: "°C/°F" button
• C5: "TX" button
• C6: "CHANNEL 1 or 2 or 3" switch
• C7: Battery compartment

4. Initial Operation

4.1 Installation of remote sensors.

1. Open the battery compartment cover of the 3 remote sensors and choose the channel (1,2,3) by switching the channel shift.
2. Insert 2 x AA batteries into each remote sensor according to the battery polarity direction.
3. After power on, all icons on the LCD will light up for 3 seconds. The temperature and humidity of the sensor will be detected. At the same time, the red LED will flash once, and the sensors will automatically transmit wireless signals.

4.2 Installation of the display console.

1. Install the batteries into the display console. Remove the battery compartment cover, install 2 AA batteries in the battery compartment. Alternatively, you can plug in the display console with the provided DC power adapter.
2. After power on, the display will beep once and all the icons on the LCD will light up for 3 seconds, then the LCD will show the values of indoor temperature, humidity, and pressure.
3. The weather station will take about 3 minutes to automatically scan the nearby remote sensors. While in the search mode, the receive RF antenna symbol "" will be constantly displayed. After receiving, the temperature and humidity of 3 channels will display on the LCD screen.

5. Set (Program) Mode

When entering the set mode, the corresponding setting content flashes, and other irrelevant display content is hidden.

• In normal mode, press and hold the "" button for more than 2 seconds to enter the set mode. The first setting will begin flashing.
• Press the "-/zZ" touch area twice to exit the setting mode at any time.
• If no operation is performed for 20 seconds, the weather station will exit the set mode to the normal mode.
• In the set mode, you can press the "" button to confirm and enter the next setting. Press "▲" or "▼" button to set or change the value. Press and hold "▲" or "▼" button for more than 2 seconds, the value will increase or decrease rapidly.

The setting order is as follows:

Beeper ON/OFF → Temperature Units of Measure (°C or °F) → Barometric Pressure Display Unit (hPa or inHg) → RCC ON/OFF → DST ON/OFF → Time Zone Setting (AST EST CST MST PST AKT and HAT) → 12/24 Hour Format → Change Hour → Change Minute → Change Year → Change Month → Change Day → Language Display of Week and Month (English, Français, and Español) → Barometric Pressure Calibration Mode → Initial Weather Setting → Exit.

Note: There are 3 languages for Weekday and month code: English, Français, and Español.

Week language display:

Month code display:

America time zone:

• AST: Atlantic Standard Time -4
• EST: Eastern Standard Time -5
• CST: Central Standard Time -6
• MST: Mountain Standard Time -7
• PST: Pacific Standard Time -8
• AKT: Alaska Standard Time -9
• HAT: Hawaii-Aleutian Standard Time -10

Note:

• Please select the correct time zone according to the area where the weather station is located; otherwise, the time will be wrong when the WWVB signal is successfully received.
• Exceeding the America signal tower diameter of 1500KM or more, the signal received by the radio clock signal is very poor. It is recommended to set the WWVB to OFF.
• The atmospheric pressure is provided by the factory and has been adjusted to absolute pressure. Since air pressure usually decreases as altitude increases, public meteorological agencies always publish so-called relative air pressure. In order to obtain a comparable value, the relative air pressure has been adjusted to the topography of the country. You can adjust the air pressure of the weather station to the ratio of its location. For this, you must uniquely adjust the current air pressure of the weather station. Ask your local weather forecast service about the air pressure at sea level, or get the current value from the Internet. The above adjustment of the air pressure setting is based on this reason. When the air pressure is absolute air pressure, ABS PRESSURE is displayed, and when the air pressure is adjusted, it displays REL PRESSURE.
• The time of sunrise and sunset will be determined according to DST, so if the DST system is not implemented in this area, it is recommended to set the DST to OFF.

6. Alarm and Snooze

6.1 Alarm clock setting.

• In normal mode, press and hold the "" button for more than 2 seconds to enter the alarm clock setting mode. The setting order is: Hour setting for alarm 1 → Minute setting for alarm 1 → Repeat setting for alarm 1 → Snooze time setting for alarm 1 → Hour setting for alarm 2 → Minute setting for alarm 2 → Repeat setting for alarm 2 → Snooze time setting for alarm 2 → Exit.
• In the alarm clock setting mode, press "" button to confirm your setting and enter the next setting part. Press "▲" or "▼" button to set or change the value. Press and hold "▲" or "▼" button for more than 2 seconds, the value will increase or decrease rapidly.
• Touch the "-/zZ" area twice to exit the setting mode directly.
• There are 3 options for the alarm repeat mode:
  • M-F: The alarm function will be activated from Monday to Friday, and will be disabled on Saturday and Sunday.
  • S-S: The alarm function will be activated on Saturday and Sunday, and will be disabled from Monday to Friday.
  • M-S: The alarm function will be activated for a week.
• The snooze time setting range: 5 ~ 60mins, OFF. When set to OFF, it means the snooze function is turned off. The unit of snooze time is minutes.
• If no operation is performed for 20 seconds, the weather station will exit the set mode to the normal mode.

6.2 Turn on and off the alarm clock.

• In the normal mode, press the "" button to enter the alarm clock view mode. Here you can view the ALARM1 time or ALARM2 time, and press the "" button to turn the alarm clock ON or OFF. If ALARM1 or ALARM2 is turned on, the "" or "" icon is displayed; otherwise, the icon will disappear.
• When the alarm goes off, the corresponding alarm icon "" or "" will be displayed and flash.
• The alarm sound will last for 2 minutes and will change as follows:
  • 0-9 seconds: Bi per second.
  • 10-19 seconds: Bi Bi per second.
  • 20-29 seconds: Bi Bi Bi per second.
  • 30-120 seconds: Bi Bi Bi BI per second.
• Turn off the alarm sound. When the alarm clock goes off, press any buttons except the "-/zZ" button or press and hold the "-/zZ" button for more than 2 seconds to stop the alarm signal.

6.3 Snooze function.

• When the alarm clock goes off, press the "-/zZ" button to stop the alarm sound and enter the SNOOZE mode. After the snooze time is counted, the alarm will ring again. If you press the "-/zZ" button again, you will enter the snooze mode again, and you can cycle the snooze mode.
• When the snooze alarm goes off, to stop the alarm and exit the snooze mode, you can press any buttons except the "-/zZ" button, or touch and hold the "-/zZ" for more than 3 seconds, or do nothing after the alarm goes off for 1 minute.
• In snooze mode, to exit the snooze mode, press and hold the "-/zZ" for more than 3 seconds or press any buttons except the "-/zZ".
• When the snooze function is set to off, when the alarm rings, no matter you press any button, the alarming will stop and will not enter the snooze mode.

Note:

• When alarm 1 and alarm 2 are set to the same time, the system defaults to alarm 1, and alarm 2 will be deactivated.
• When the 2 alarms ring separately (the interval is 1 minute), when the second alarm rings, the first alarm will automatically turn off.
• If the 2 alarms are both activated, when the first alarm rings and enters the snooze mode, and then the second alarm rings during the snooze mode, it will exit the snooze mode of the first alarm.

7. Moon Phases and Tide Indicator

In the normal mode, moon phases and tide levels are calculated based on the city's calendar and time.

The tide indicator is divided into 3 levels: HIGH, MEDIUM, and LOW.

The following 12 kinds of moon phases are displayed based on the calendar:

New moon, Waning half-moon, Half-moon, Waning full moon, Full moon, Waning full moon, Half-moon, Waning half-moon.

8. Select or Setting City of Your Location

8.1 Select a city.

• Press the "" button once to enter the city selection mode. In the city selection mode, press "▲" or "▼" button to select the correct city according to the three-character code of the city corresponding to the table below. Press and hold "▲" or "▼" button for more than 2 seconds to increase or decrease the value rapidly.
• After selecting the city, press the "" button to exit the selection mode and return to the normal mode.

City List:

8.2 City custom setting mode.

If your city is not listed in the table above, you can customize the city, latitude, and longitude.

• It is recommended that you check the time zone, latitude, and longitude of your city before setting.
• In the normal mode, press and hold the "" button for more than 2 seconds to enter the city custom setting mode.
• In the city custom setting mode, press "" button to confirm and enter the next setting item. Press "▲" or "▼" button to adjust the value up or down, press and hold "▲" or "▼" button for more than 2 seconds to increase or decrease the value rapidly.
• Setting order: Set the first code of your city → Set the second code of your city → Set the third code of your city → Set the time zone → Set the longitude of the city → Set the latitude of the city → Exit.
• Touch the "-/zZ” area twice to exit the setting mode directly.
• If no operation is performed for 20 seconds, the weather station will exit the set mode and enter the normal mode.
• After selecting a city or setting a custom city, the sunrise time and sunset time are automatically calculated and displayed in the corresponding area according to the location, time zone, and current time of the selected city.

9. RF Transmission Procedure

• When the weather station successfully receives the signal from the remote sensors, the outdoor temperature and humidity will be displayed on the corresponding outdoor channel of the display console.
• The weather station can connect up to 3 remote sensors, but when using multiple sensors at the same time, please set the sensors to different channels.
• In the normal mode, press the "" button for more than 2 seconds, all the data on the weather station of outdoor sensors will be cleared (--.-°C or --.-°F and --%RH are displayed on the LCD). At this time, you can wait for the weather station to automatically re-receive the sensor signal, or you can manually press the TX button (located in the battery compartment) on the remote sensor to quickly send a signal to the weather station.
• In the normal mode, press the "" button to select the channel, the number of selected channels will flash, then press and hold the "" button for more than 2 seconds, the data of the channel you selected will be cleared (--.-°C or --.-°F and --%RH are displayed on the LCD). At this time, you can wait for the weather station to automatically re-receive the sensor signal, or you can manually press the TX button (located in the battery compartment) on the remote sensor to quickly send a signal to the weather station.
• If the weather station failed to receive a transmission from the outdoor remote sensors ("--.-" is displayed on the LCD), press the "" button to select the channel, the number of selected channels will flash, then press and hold the "" button for more than 2 seconds, RF icon "" will be flashing, the weather station will rescan the launch signal of the channel.

Note:

• The "TX" button on the remote sensor (located in the battery compartment) is used to quickly transmit the signal to the weather station without waiting for the automatic updates. You can use it when the weather station receives the signal from the sensor for the first time, or when the weather station reconnects the signal from the sensor.
• When clearing the outdoor data, the original minimum and maximum date of outdoor temperature and humidity will also be cleared together.

10. Reception of the Radio Signal

• In the WWVB radio signal reception mode, the signal symbol "" is displayed and flashes. If a valid signal is received during the receiving process, the signal symbol will stop flashing, and the signal wave symbol "" is displayed. If the signal is suddenly interrupted during valid reception, the signal wave symbol "" is not displayed and converted to a signal symbol "" displays and flashes.
• The WWVB signal reception time is 7 minutes. If the reception is successful within 7 minutes, the time displayed by the weather station is converted to the received time, and the WWVB symbol "" is displayed on the screen, indicating that the WWVB reception is successful. If no valid signal is received within 7 minutes, it will automatically exit the WWVB reception, and the symbol "" will not be displayed.
• Automatically receive the WWVB signal: At 1:00, 2:00, 13:00, 14:00, 15:00 AM every day, the clock automatically performs a synchronization procedure with the WWVB signal to correct any deviations to the exact time. If this synchronization attempt is unsuccessful (the signal symbol disappears from the display), the system will automatically attempt another synchronization in the next full hour. This procedure is automatically repeated up to 5 times. As long as the reception is successful once, the signal reception will not be turned on for the next few times.
• Manually receive the WWVB signal: To start receiving the WWVB signal manually, press and hold down the "" button for 2 seconds. If no signal is received within 7 minutes, the WWVB signal search stops (the signal symbol disappears) and restarts in the next full hour. Please note: The weather station will not automatically enter the WWVB signal after 3 minutes of RF reception after power on; you need to operate it manually if you want to receive the WWVB signal immediately. During WWVB radio signal reception, to stop searching radio signal, press and hold down the "" button for more than 2 seconds.
• When the WWVB signal is received, the system time will be converted to the time in the set time zone.

Note:

• During the WWVB radio reception mode, except for the "" and "-/zZ" button, other buttons have no function. To perform other operation functions, press and hold the "" button for more than 2 seconds to exit the WWVB radio reception mode.
• When the weather station enters the radio control time receiving mode, the backlight will automatically turn off. Press the "-/zZ" button to turn on the backlight, or the backlight will be automatically turned on after the radio control time receiving reception.
• The symbol "DST" indicates the reception time of daylight saving time.
• When the WWVB is successfully received, if you manually enter the time setting and change any time item, the receiving symbol "" will not be displayed, and if there is daylight saving time, the daylight saving time symbol "DST" will not be displayed either.
• We recommend keeping weather stations at least 2.5 meters away from all sources of interference, such as televisions or computer monitors.
• Radio reception is weak in rooms with concrete walls (e.g.: in cellars) and offices. Under these circumstances, place the weather station near the window.

11. Temperature & Humidity Measurement Specifications

• Indoor temperature range: 14°F~ 122°F (-9.9°C~50°C). LL.L°F (°C) will be displayed if the value is lower than 14°F (-9.9°C), HH.H °F(°C) will be displayed if the value is higher than 122°F (50°C).
• Outdoor temperature range: -40°F ~ +158°F (-40°C~70°C). LL.L°F (°C) will be displayed if the value is lower than -40°F (-40°C), HH.H °F(°C) will be displayed if the value is higher than +158°F (+70°C).
• Indoor and outdoor humidity display range: 20%RH ~ 95%RH.
• If the indoor and outdoor humidity value is lower than 20%RH, it will display 20%RH on the screen. If the indoor and outdoor humidity value is more than 96%RH, it will display 96%RH on the screen.

12. Temperature/Humidity Trend Display

The current indoor & outdoor temperature/humidity and the temperature/humidity trend are shown in the LCD display. You may see the following displays:

• : When the temperature rises more than 1°C (1.8°F); When the humidity increases more than 5%RH within 1 hour.
• : When the temperature drops more than 1°C (1.8°F). When the humidity decreases more than 5%RH within 1 hour.
• No display: When the temperature rises/drops less than 1°C (1.8°F). When the humidity increases/decreases less than 5%RH within 1 hour.

13. Maximum/Minimum of Temperature/ Humidity

• In the normal mode, press the "" button to view the maximum/minimum values of indoor & outdoor temperature and humidity. When the "MAX" symbol is displayed, the displayed temperature and humidity value is the maximum value. When the "MIN" symbol is displayed, the displayed temperature and humidity value is the minimum value. The viewing order is: Maximum values → Minimum values → Current values.
• When viewing the MAX/MIN value, if no operation is performed for 5 seconds, the weather station will automatically return to the current value.
• To reset the MAX and MIN temperature and humidity, press and hold down the "" button for about 2 seconds. This resets all recorded MAX and MIN data to the current data.

14. Temperature & Humidity Alarm and Frost Warning

14.1 Temperature and humidity alarm settings.

• In the normal mode, press the "" button to enter the temperature and humidity alarm viewing mode, press the "" button again to switch to view the next item, in order: Temperature upper limit alarm → Temperature lower limit alarm → Humidity upper limit alarm → Humidity lower limit alarm → Frost alarm (INDOOR has no frost alarm item) → Can switch cyclically.
• In this temperature and humidity alarm viewing mode, press the "" button to switch to a different channel, in the order of items: 1, 2, 3, and can switch cyclically.
• In this temperature and humidity alarm viewing mode, the alarm function of each item can be turned ON or OFF by pressing the "" button when the respective item is displayed. In the normal mode, the corresponding alarm symbol "HI" or "LOA" or "" is displayed on the screen if the alert function is turned ON.
• In the normal mode or temperature and humidity alarm viewing mode, press and hold the "" button for more than 2 seconds to enter the temperature and humidity alert setting mode. The corresponding temperature and humidity value becomes the upper limit or lower limit of temperature and humidity. At this point, you can start to set the alarm value of temperature and humidity.
• Press "▲" or "▼" button to set the value up or down, press and hold "▲" or "▼" button to increase or decrease the value rapidly.
• Press the "" button to confirm and enter to the next setting item. The setting order: Upper limit alert setting of the temperature → Lower limit of the temperature alert → Upper limit of the humidity alert → Lower limit of the humidity alert → Exit.
• When setting the upper and lower limit alarm values of temperature and humidity, press the "" button to switch to different channels, and set the upper and lower limit alarm values of temperature and humidity for different channels.
• Touch the "-/zZ” area twice to exit the setting mode directly.
• If no operation is performed for 20 seconds, the weather station will exit the set mode to the normal mode.

14.2 Temperature & humidity upper limit and frost warning.

• When the current temperature or humidity value is higher or lower than the temperature or humidity alarm value, and the corresponding temperature or humidity alarm function is turned ON, the weather station will beep for 3 seconds. At the same time, the corresponding symbol "HI" or "LOA" and the corresponding values will flash, and they will keep flashing after beeping for 3 seconds.
• Conditions for stopping the alarm (including the flashing of the alarm symbol):
  • Press any button to cancel the alarm sound, but the alarm symbol will still flash on the display.
  • Turn off the corresponding temperature or humidity alarm function. (Refer to 14.1 Temperature and humidity alarm settings.)
  • When the temperature or humidity returns to the alarm range, it will automatically stop the alarm.
• When the frost alarm of outdoor channel 1/2/3 is turned ON (no frost alarm function indoor), and the temperature of outdoor channel 1/2/3 is in the range of 30°F~37°F (-1°C~ 3°C), the frost alarm is triggered, the weather station will beep for 3 seconds at the same time, the frost symbol "" will flashes on the corresponding channel until the temperature value is not within the range of the frost alarm range.

15. Comfort and Indoor Mildew Risk

There are 4 display modes for the comfort level, as follows:

• DRY: The temperature is any value, the humidity is less than 40%
• COM: Temperature in the range of 68.0°F~82.4°F (20.0℃~28.0°C), humidity in the range of 40%~70%
• WET: The temperature is any value, and the humidity is greater than 70%
• Icon does not display: Temperature is less than 68.0 °F & 20.0 °C or greater than 82.4°F & 28 °C, humidity is in the range of 40%~70%

The mold risk level is displayed to the left of the indoor humidity. There are 4 levels of mold risk warning: HI (high), ME (medium), LO (low), and no risk (no arrow displayed), which are calculated based on the indoor temperature and humidity.

16. Low battery:

• If the low battery icon "" appears in the INDOOR area, you need to replace the display console's battery as soon as possible.
• When the low battery icon "" is displayed in the corresponding sensor channel, you need to replace the battery of the low battery remote sensor as soon as possible.

17. Weather Forecast

The weather forecast predicts the weather conditions in the next 12 hours according to the barometric pressure trend. It's calculated from the evaluation of fluctuations in the barometric pressure and may deviate from the actual weather conditions and official forecast. If there is a deviation, please refer to the official forecast.

The weather station displays the following weather icons:

• FORECAST TREND: sunny
• FORECAST TREND: slightly cloudy
• FORECAST TREND: cloudy
• FORECAST TREND: rainy
• FORECAST TREND: stormy
• FORECAST TREND: Snowy

Note:

• The Snowy icon will only appear if the outdoor temperature is below -4°C (+25°F) in the case of rain or storm. By default, the outdoor temperature is the temperature of CH1. If there is no signal in CH1, the outdoor temperature is the temperature of CH2. When there is no signal in CH1 and CH2, the outdoor temperature defaults to CH3.
• After the weather station needs 7-10 days of air pressure calibration, the weather forecast will stabilize with an accuracy rate of 70%-75%.
• The weather forecast can be given for a radius of up to 12-20km.
• The weather station can display the barometric pressure trend.
• Barometric pressure trend display:
  • : The barometric pressure will rise.
  • : The barometric pressure will remain constant.
  • : The barometric pressure will fall.

18. Backlight Instructions

18.1 Adjustable brightness of backlight.

• If the console is powered by batteries only, touch the "-/zZ" once to turn on the backlight for 15 seconds, and if no operation is performed for 15 seconds, the backlight will turn off to save power.
• If the console is plugged into the power adapter, the backlight will always stay on. Press "" button to change the brightness levels of backlight: 4 different brightness levels (LV4→LV1) and OFF. Return to normal mode after 3 seconds without pressing the button.
• In the brightness other than LV4 (the maximum brightness), touch the "-/zZ" field can make the backlight turns to the brightest (LV4) for 15 seconds.

18.2 Settings for Screen Night Mode.

• Touch and hold "-/zZ" field for more than 3 seconds to enter the night mode setting. The setting order is: Turn on or off the night mode → Brightness in the night mode → Hours to enter the night mode → Minutes to enter the night mode → Hours to exit the night mode → Minutes to exit the night mode → Exit.
• In the night mode setting, press "" button to confirm and enter to the next setting item. Press "▲" or "▼" button to set the value. Press and hold "▲" or "▼" button to increase or decrease values rapidly. Touch the "-/zZ" area twice to exit the setting mode directly.
• The backlight brightness in night mode can be set to 3 levels: LV1, LV2, and LV3.
• When the night mode is ON, the icon "" will be displayed. When the time reaches the time to enter the night mode, the backlight will automatically switch to the set night mode brightness, and when the time reaches the time to exit the night mode, the backlight will return to the original brightness.
• In night mode, the backlight can be switched to the highest brightness for 15 seconds by touching the "-/zZ" field. Press "" button, the brightness will turn to the next level (such as: lv3 to lv2) and exit the night mode. At the next time when night mode is reached, it will automatically enter night mode.

Note:

• During the reception of the time radio wave signal, the backlight will be automatically closed to prevent the interference of the radio wave. Touch the "-/zZ" area to turn on the backlight for 15 seconds, and it will automatically turn off after 15 seconds.