Introduction
Thank you for purchasing the Sencor SWS 21 S Weather Station. This device provides accurate indoor and outdoor temperature readings, along with time, date, and alarm functions. Please read this manual carefully before use to ensure proper operation and maintenance.
Safety Information
- Do not expose the unit to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the unit to strong impacts.
- Do not mix old and new batteries, or different types of batteries.
- Dispose of used batteries responsibly according to local regulations.
- Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified personnel.
Package Contents
- Sencor SWS 21 S Main Unit
- Wireless Remote Sensor
- User Manual
Product Overview
Main Unit
Image Description: The image displays the Sencor SWS 21 S weather station's main unit on the left and its remote sensor on the right. The main unit is black and silver, featuring a large LCD screen that shows time (10:34), date (26/07), indoor temperature (25.0°C), and outdoor temperature (25.6°C). Below the screen are control buttons: 'SET', 'LCD', 'UP/CH', 'DOWN/°C', 'ALARM', and 'SNOOZE'. The remote sensor is white and black, with a smaller display showing 25.6°C and "REMOTE SENSOR" along with a "433MHz" indicator.
- LCD Display: Shows time, date, indoor/outdoor temperature, and alarm status.
- SET Button: Enters setting mode.
- LCD Button: Adjusts LCD display settings (if applicable).
- UP/CH Button: Increases values in setting mode or cycles through sensor channels.
- DOWN/°C Button: Decreases values in setting mode or switches temperature unit (°C/°F).
- ALARM Button: Activates/deactivates alarm or enters alarm setting mode.
- SNOOZE Button: Activates snooze function for the alarm.
Wireless Remote Sensor
The remote sensor transmits outdoor temperature data to the main unit. It operates on 433 MHz frequency and has a range of up to 30 meters in open areas.
- Temperature Sensor: Measures outdoor temperature.
- Transmission Indicator: Light flashes when transmitting data.
- Channel Switch: Allows selection of one of three channels (CH1, CH2, CH3) for multiple sensors.
Setup
1. Battery Installation
- Main Unit: Open the battery compartment on the back. Insert 2 x 1.5V AA batteries, observing the correct polarity (+/-). Close the compartment.
- Remote Sensor: Open the battery compartment. Insert 2 x 1.5V AAA batteries, observing the correct polarity (+/-). Select a channel (CH1, CH2, or CH3) using the switch inside the compartment. Close the compartment.
2. Sensor Pairing
After inserting batteries into both units, the main unit will automatically search for the remote sensor. The outdoor temperature reading should appear on the main unit's display within a few minutes. If not, press and hold the "UP/CH" button on the main unit to initiate a manual search.
3. Initial Time and Date Setup
The SWS 21 S features a Radio Controlled Clock (RCC) function. It will attempt to synchronize with an atomic clock signal. If synchronization is not immediate or you wish to set it manually:
- Press and hold the SET button until the time display flashes.
- Use the UP/CH or DOWN/°C buttons to adjust the hour, then press SET to confirm.
- Repeat for minutes, year, month, and day.
- Press SET to exit the setting mode.
You can also switch between 12/24 hour format during time setting.
Operating Instructions
Time and Date Display
- The main unit displays the current time, date, month, and day.
- To switch between 12-hour and 24-hour format, press the SET button briefly when not in setting mode.
Temperature Display
- The display shows both indoor and outdoor temperatures.
- To switch between Celsius (°C) and Fahrenheit (°F), press the DOWN/°C button briefly.
Alarm Setting
- Press the ALARM button once to display the alarm time.
- Press and hold the ALARM button until the alarm time flashes.
- Use UP/CH or DOWN/°C to adjust the hour, then press ALARM to confirm.
- Repeat for minutes. Press ALARM to exit.
- To activate/deactivate the alarm, press the ALARM button briefly when the alarm time is displayed. An alarm icon will appear/disappear.
Snooze Function
When the alarm sounds, press the SNOOZE button to temporarily stop the alarm. The alarm will sound again after approximately 5 minutes.
Multiple Wireless Sensors (Optional)
The main unit supports up to 3 wireless sensors. If you have multiple sensors, ensure each is set to a different channel (CH1, CH2, CH3) before battery installation. Press the UP/CH button on the main unit to cycle through the outdoor temperature readings from different sensors.
Maintenance
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries in both the main unit and remote sensor when the low battery indicator appears on the display. Always replace all batteries at the same time.
- Storage: If not using the unit for an extended period, remove the batteries to prevent leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display on main unit | Batteries are dead or incorrectly inserted. | Check battery polarity or replace batteries. |
| Outdoor temperature not displayed or incorrect | Sensor out of range, low sensor battery, interference, or sensor not paired. | Move sensor closer to main unit. Replace sensor batteries. Avoid placing near electronic devices. Re-initiate sensor search (press and hold UP/CH). Ensure sensor channel matches main unit. |
| Time is incorrect | RCC signal interference or manual setting required. | Relocate unit away from electronic devices. Manually set time and date as per "Initial Time and Date Setup" section. |
| Alarm not sounding | Alarm is not activated. | Ensure alarm icon is displayed on the screen. |
Specifications
| Feature | Detail |
|---|---|
| Model | SWS 21 S |
| Main Unit Dimensions (H x W x D) | 173 x 75 x 68 mm |
| Main Unit Weight | 153 g |
| Remote Sensor Dimensions (H x W x D) | 95 x 60 x 25 mm |
| Remote Sensor Weight | 60 g |
| Indoor Temperature Range | 0 °C to +50 °C |
| Outdoor Temperature Range | -20 °C to +60 °C |
| Temperature Accuracy | ±1.5 °C |
| Wireless Frequency | 433 MHz |
| Wireless Range | Up to 30 m (open area) |
| Main Unit Power | 2 x 1.5V AA batteries |
| Remote Sensor Power | 2 x 1.5V AAA batteries |
| Clock Type | Radio Controlled Clock (RCC) |
| Time Display | 12/24 Hour selectable |
| Alarm Function | Yes, with Snooze |
Warranty and Support
Sencor products are manufactured to high quality standards. For information regarding warranty terms and conditions, or for technical support, please refer to the warranty card included with your product or visit the official Sencor website. Keep your purchase receipt as proof of purchase.
