SMARTRO SC91
Phau Ntawv Qhia Siv SMARTRO SC91 Lub Moos Ceeb Toom Projection
Model: SC91 | Brand: SMARTRO
1. Khoom Tshajview
The SMARTRO SC91 Projection Alarm Clock is a multi-functional device designed for bedrooms, offering time and temperature projection, a wireless indoor/outdoor thermometer, and a humidity monitor. It features a clear LCD screen, dual alarms with snooze, and a weather station that predicts the next 12 hours' weather. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your device.

Duab 1.1: Pem hauv ntej view of the SMARTRO SC91 Projection Alarm Clock with its wireless outdoor sensor and a red time projection.
Cov yam ntxwv tseem ceeb:
- Time and Temperature Projection: Projects indoor/outdoor temperature and time onto a wall or ceiling with adjustable angles and brightness.
- Indoor/Outdoor Thermometer & Hygrometer: Provides accurate temperature and humidity readings for both indoor and outdoor environments.
- Wireless Color Weather Station: Displays 12/24 hour time, date, weekday, and predicts weather patterns for the next 12 hours.
- Dual Alarms with Snooze Function: Set two independent alarms with adjustable snooze time (5-60 minutes).
- Multi-Sensor Connectivity: Supports connection with up to 3 wireless remote sensors (one sensor included).

Duab 1.2: Tshajview of the compact design and key functionalities of the SMARTRO SC91 clock, including dimensions.
2. Teeb Qhia
2.1 Fais fab lub cuab yeej
The SMARTRO SC91 can be powered by a DC adapter (included) for continuous operation and display brightness, or by 2 AA batteries (not included) for backup power and portability. Batteries are primarily for memory backup during power outages.
- Insert 2 AA batteries into the battery compartment on the back of the main unit, observing polarity.
- Connect the DC power adapter to the main unit and plug it into a wall outlet. The display will light up.
2.2 Setting Up the Wireless Outdoor Sensor
The outdoor sensor transmits temperature and humidity data to the main unit.
- Open the battery compartment of the wireless sensor and insert 2 AA batteries, observing polarity.
- Select a channel (1, 2, or 3) on the sensor. The main unit will automatically search for the sensor.
- Place the outdoor sensor in a shaded area, protected from direct sunlight and rain, to ensure accurate readings and prolong its lifespan. The transmission range is up to 200ft/60m in an open area.

Image 2.1: The main unit can connect to up to three wireless sensors, allowing monitoring of different locations like outdoor, cellar, or garage.
3. Cov lus qhia ua haujlwm
3.1 Teem Sijhawm thiab Hnub Tim
- Nias thiab tuav lub SET khawm kom nkag mus rau lub sijhawm teeb tsa hom.
- Siv cov UP or POM nyees khawm los kho tus nqi.
- Xovxwm SET again to confirm and move to the next setting (e.g., 12/24 hour format, hour, minute, year, month, day, weekday language).
- Xovxwm SET one more time to exit setting mode.
3.2 Projection Feature
The clock can project time and temperature onto a wall or ceiling.
- Projection Angle: The projection arm can be rotated 180 degrees for optimal viewhauv.
- Projection Brightness: Nias lub PROJECTION button to cycle through Off, Dim, and Bright projection levels.
- The projected temperature automatically switches between indoor and outdoor readings.

Image 3.1: The projection feature allows for a 180-degree flip of the projected display for flexible viewhauv.

Image 3.2: Adjust the projection brightness to your preference, from off to dim or bright.
3.3 Tswb muaj nuj nqi
The SC91 features dual alarms (ALARM1 and ALARM2) with a snooze function.
- Nias lub Tswb button to select ALARM1 or ALARM2.
- Nias thiab tuav lub Tswb khawm kom nkag mus rau lub tswb teeb hom.
- Siv UP or POM to adjust the alarm time and alarm repeat mode (M-F, S-S, or M-F and S-S).
- Xovxwm Tswb kom paub meej txhua qhov chaw.
- To activate/deactivate an alarm, press the ALARM ON / OFF switch on the back of the unit.
- Thaum lub tswb nrov, nias lub SNOOZE / TEEB button to activate snooze. The snooze duration can be set from 5 to 60 minutes.
- The alarm will automatically turn off if left alone for 2 minutes.

Image 3.3: The clock offers two separate alarms and an adjustable snooze time for personalized wake-up routines.
3.4 Weather Station and Comfort Indicator
The clock displays current indoor/outdoor temperature and humidity, along with a weather forecast.
- The weather station predicts the weather for the next 12 hours based on barometric pressure trends.
- The comfort indicator (smiley face icon) on the display shows if the indoor humidity and temperature are within a comfortable range.
- Nias lub ° C/° F. khawm hloov ntawm Celsius thiab Fahrenheit kub units.

Image 3.4: The weather station calculates and displays the weather forecast for the upcoming 12 hours.

Image 3.5: The comfort indicator provides a quick visual cue for indoor humidity and temperature levels: Dry, Comfortable, or Wet.
4. Kev tu
Proper maintenance ensures the longevity and accuracy of your SMARTRO SC91 Projection Alarm Clock.
- Ntxuav: Wipe the main unit and sensor with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Qhov chaw Sensor: Ensure the outdoor sensor is protected from direct sunlight and heavy rain. Extreme weather conditions can affect its performance and lifespan.
- Hloov roj teeb: Replace batteries in both the main unit (if used for backup) and the sensor when the low battery indicator appears on the display.
5. Kev daws teeb meem
If you encounter issues with your SMARTRO SC91, refer to the following common problems and solutions:
| Teeb meem | Ua Tau | Kev daws |
|---|---|---|
| Tsis muaj zaub lossis tsis pom | Tsis muaj zog lossis roj teeb tsawg. | Ensure DC adapter is properly connected. Replace AA batteries if running on battery power or for backup. |
| Outdoor temperature/humidity not displayed or inaccurate | Sensor out of range, low sensor battery, or interference. | Move sensor closer to the main unit. Replace sensor batteries. Avoid placing near large metal objects or electronic devices. Re-sync sensor by removing and reinserting batteries in both units. |
| Projection is blurry or unclear | Incorrect projection distance or focus. | Adjust the distance between the clock and the projection surface (optimal 5-13ft). Ensure the projection lens is clean. |
| Alarm not sounding or too quiet | Lub tswb tsis tau qhib los yog lub suab qis dhau. | Check if the alarm is enabled via the switch on the back. Ensure the alarm volume is set appropriately (if adjustable). |
| Huab cua huab cua tsis raug | Initial setup or local atmospheric pressure changes. | The weather forecast is based on barometric pressure changes over time. Allow 7-14 days for the station to learn local atmospheric pressure. It predicts trends, not real-time weather. |
6. Cov lus qhia tshwj xeeb
| Feature | Paub meej |
|---|---|
| Hom | SMARTRO |
| Qauv nab npawb | SIB 91 |
| Hom zaub | Digital, Multi Display |
| Xim | Dub |
| Khoom Dimensions | 6.6 "W x 3.9" H |
| Yam Nyhav | 13.12 hli |
| Hwj chim Source | Battery Powered (2 AA batteries required for backup), Electrical (DC adapter) |
| Kev siv sab hauv / sab nraum zoov | Indoor (main unit), Outdoor (sensor) |
| Projection nrug | 5-13 ft (suggested) |
| Sensor Transmission Range | Up to 200ft/60m (open area) |
| Number of Sensors Supported | Up to 3 (1 included) |
| Lub tswb moos | Yes, Dual Alarms |
| Snooze Function | Adjustable 5-60 minutes |
| Ncej Khoom | Yas |
7. Warranty thiab Support
7.1 Warranty Information
The SMARTRO SC91 Projection Alarm Clock comes with a 13-lub hlis warranty, covering manufacturing defects. This warranty does not cover damages caused by artificial misuse or accidents.
7.2 Kev Pabcuam Cov Neeg Siv Khoom
SMARTRO is committed to providing excellent after-sales service. If you have any questions, concerns, or require technical assistance, please contact our support team. Your satisfaction is our primary goal.
For support, please refer to the contact information provided on the product packaging or the official SMARTRO webqhov chaw.
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