1. Product Overview
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.
Image 1.1: Front view of the SMARTRO SC91 Projection Alarm Clock with its wireless outdoor sensor and a red time projection.
Key Features:
- 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).
Image 1.2: Overview of the compact design and key functionalities of the SMARTRO SC91 clock, including dimensions.
2. Setup Guide
2.1 Powering the Device
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. Operating Instructions
3.1 Setting Time and Date
- Press and hold the SET button to enter time setting mode.
- Use the UP or DOWN buttons to adjust the value.
- Press SET again to confirm and move to the next setting (e.g., 12/24 hour format, hour, minute, year, month, day, weekday language).
- Press 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 viewing.
- Projection Brightness: Press the 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 viewing.
Image 3.2: Adjust the projection brightness to your preference, from off to dim or bright.
3.3 Alarm Functions
The SC91 features dual alarms (ALARM1 and ALARM2) with a snooze function.
- Press the ALARM button to select ALARM1 or ALARM2.
- Press and hold the ALARM button to enter alarm setting mode.
- Use UP or DOWN to adjust the alarm time and alarm repeat mode (M-F, S-S, or M-F and S-S).
- Press ALARM to confirm each setting.
- To activate/deactivate an alarm, press the ALARM ON/OFF switch on the back of the unit.
- When an alarm sounds, press the SNOOZE/LIGHT 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.
- Press the °C/°F button to switch between Celsius and Fahrenheit temperature 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. Maintenance
Proper maintenance ensures the longevity and accuracy of your SMARTRO SC91 Projection Alarm Clock.
- Cleaning: Wipe the main unit and sensor with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Sensor Placement: Ensure the outdoor sensor is protected from direct sunlight and heavy rain. Extreme weather conditions can affect its performance and lifespan.
- Battery Replacement: Replace batteries in both the main unit (if used for backup) and the sensor when the low battery indicator appears on the display.
5. Troubleshooting
If you encounter issues with your SMARTRO SC91, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or dim display | No power or low batteries. | 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 | Alarm not activated or volume too low. | Check if the alarm is enabled via the switch on the back. Ensure the alarm volume is set appropriately (if adjustable). |
| Weather forecast inaccurate | 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. Specifications
| Feature | Detail |
|---|---|
| Brand | SMARTRO |
| Model Number | SC91 |
| Display Type | Digital, Multi Display |
| Color | Black |
| Product Dimensions | 6.6"W x 3.9"H |
| Item Weight | 13.12 ounces |
| Power Source | Battery Powered (2 AA batteries required for backup), Electrical (DC adapter) |
| Indoor/Outdoor Usage | Indoor (main unit), Outdoor (sensor) |
| Projection Distance | 5-13 ft (suggested) |
| Sensor Transmission Range | Up to 200ft/60m (open area) |
| Number of Sensors Supported | Up to 3 (1 included) |
| Alarm Clock | Yes, Dual Alarms |
| Snooze Function | Adjustable 5-60 minutes |
| Frame Material | Plastic |
7. Warranty and Support
7.1 Warranty Information
The SMARTRO SC91 Projection Alarm Clock comes with a 13-month warranty, covering manufacturing defects. This warranty does not cover damages caused by artificial misuse or accidents.
7.2 Customer Support
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 website.
