1. Product Overview
The DEWINNER Sprinkler Timer (Model G240G) is a programmable digital water timer designed for automated watering of gardens, lawns, drip irrigation systems, and outdoor faucets. It features easy programming, manual ON/OFF control, and a rain delay function to conserve water.

Image: The DEWINNER Sprinkler Timer, showing its digital display and control buttons.
Key Features:
- Easy Programming: Set watering duration from 10 seconds to 24 hours, and intervals from 1 hour to 7 days.
- Manual Mode: Initiate watering instantly for durations from 10 seconds to 24 hours.
- Rain Delay: Pause scheduled watering for 6 hours, with automatic resumption.
- Durable Construction: Made with POM material, resistant to rust and acid, with a UV-resistant coating.
- Waterproof Design: IP64-rated housing protects against wind and rain.
- Energy Efficient: Powered by 2 x 1.5V AA alkaline batteries, offering over 6 months of standby time.
- Clear Display: Large, easy-to-read LCD screen shows current time, watering duration, and interval.

Image: The DEWINNER Sprinkler Timer connected to a faucet, actively watering a lawn with a sprinkler.
Applications:
The DEWINNER Sprinkler Timer is versatile and suitable for various watering needs:
- Garden watering
- Patio and flower bed irrigation
- Greenhouse watering systems
- Lawn and courtyard irrigation
- Drip irrigation systems
- Mist systems
- Pool filling

Image: A collage showing the sprinkler timer used for sprinkler control, mist systems, drip irrigation, and pool filling.
2. Product Components
Familiarize yourself with the main components and controls of your DEWINNER Sprinkler Timer:

Image: A diagram labeling the key parts of the sprinkler timer, including the inlet, outlet, and control buttons.
- Timer Inlet: 3/4 inch Female Interface Thread with Filter. Connects to the water faucet.
- Timer Outlet: 3/4 inch Male Interface Thread. Connects to the garden hose or irrigation system.
- Green Conversion Interface: Suitable for European and British faucet interfaces.
- LCD Screen: Displays current time, watering duration, watering frequency, and other settings.
- Manual Mode Button (Hand Icon): Activates or deactivates manual watering.
- DELAY Button: Initiates the rain delay function.
- OK/ON/OFF Button: Used to confirm settings and manually turn the timer ON/OFF (long press).
- Battery Compartment: Located on the back, holds 2 x AA alkaline batteries.
- Water Inlet Filter Screen: Located inside the timer inlet, prevents sediment and debris from entering.
- POM Plastic Interface: Leak-proof connection point.
3. Setup and Installation
Follow these steps to set up your DEWINNER Sprinkler Timer:
- Install Batteries: Open the battery compartment on the back of the timer. Insert 2 x 1.5V AA alkaline batteries, ensuring correct polarity. Close the compartment securely.

Image: A four-panel illustration demonstrating battery installation, attaching the timer to a faucet, connecting a hose, and setting the program.
- Attach to Faucet: Screw the timer inlet (top connection) onto your outdoor water faucet. Ensure a tight, leak-free connection. If necessary, use the provided green conversion interface for European/British faucets.
- Attach Hose: Connect your garden hose or irrigation system to the timer outlet (bottom connection). Ensure this connection is also tight and leak-free. It is recommended to check and replace washers if leaks occur.
- Turn on Faucet: Fully open your water faucet. The timer will control the water flow.
4. Operating Instructions
4.1 Setting Current Time
Before programming, set the current time on the timer. Refer to the timer's display and use the OK/ON/OFF button to navigate and adjust the time. The clock operates in a 24-hour format.
4.2 Automatic Mode Programming
To set an automatic watering schedule:
- Ensure the timer is in automatic mode (indicated by the knob position or display).
- Set Watering Duration ("How Long"): Adjust the duration from 10 seconds up to 24 hours. This is the length of time water will flow during each watering cycle.
- Set Watering Frequency ("How Often"): Adjust the interval between watering cycles from 1 hour up to 7 days. This determines how often the timer will activate.
- Confirm your settings using the OK/ON/OFF button. The timer will now operate according to your programmed schedule.

Image: The timer display showing "HOW LONG" (watering duration) adjustable from 10 seconds to 24 hours, and "HOW OFTEN" (watering frequency) adjustable from 1 hour to 7 days.
4.3 Manual Mode
For immediate, unscheduled watering:
- Activate Manual Mode: Long press the Manual Mode button (hand icon) on the timer.
- Adjust Duration: Use the controls to set the desired manual watering duration, from 10 seconds to 24 hours.
- Start Watering: Confirm the duration, and the timer will begin watering immediately.
- Stop Manual Watering: To stop manual watering before the set duration, long press the OK/ON/OFF button.
4.4 Rain Delay Mode
To temporarily pause your automatic watering schedule due to rain or other reasons:
- Activate Rain Delay: Press the DELAY button. The timer will pause its scheduled watering.
- The default delay period is 6 hours. After this period, the timer will automatically resume its programmed schedule.
- This feature helps conserve water and prevents overwatering during wet conditions.

Image: The sprinkler timer with a visual representation of the rain delay feature, indicating delayed watering for up to 1 to 7 days, multiple irrigation modes, and water conservation.
5. Maintenance
5.1 Battery Replacement
The timer is powered by 2 x 1.5V AA alkaline batteries. When the battery level is low, the LCD screen will display "Lo" to indicate that replacement is needed. Your programming will be retained during battery replacement.
- Open the battery compartment on the back.
- Remove the old batteries and insert new 1.5V AA alkaline batteries, observing polarity.
- Securely close the battery compartment.
5.2 Cleaning the Water Inlet Filter Screen
To ensure optimal performance and prevent blockages, regularly inspect and clean the water inlet filter screen:
- Unscrew the timer from the water faucet.
- Carefully remove the filter screen located inside the timer inlet.
- Rinse the filter screen under running water to remove any accumulated sediment or debris.
- Reinsert the clean filter screen and reattach the timer to the faucet.

Image: A close-up showing the water inlet filter screen and the POM plastic leak-proof interface, highlighting their role in preventing blockages.
5.3 Winter Storage
During freezing temperatures, disconnect the timer from the faucet and hose. Drain any remaining water and store the timer indoors in a dry, frost-free location to prevent damage.
6. Troubleshooting
If you encounter issues with your DEWINNER Sprinkler Timer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leaks from connections. | Loose connections, worn washers, or incorrect installation. | Ensure all connections are tightened securely. Check the rubber washers inside the connections; replace if worn or missing. Apply plumber's tape if necessary. |
| Timer does not turn on or display is blank. | Dead or incorrectly installed batteries. | Replace the 2 x AA alkaline batteries with new ones, ensuring correct polarity. |
| Timer does not water at scheduled times. | Incorrect programming, low battery, or faucet is off. | Verify your watering duration and frequency settings. Check battery level ("Lo" on display). Ensure the outdoor faucet is fully open. |
| Water flow is weak or stopped. | Clogged water inlet filter screen. | Disconnect the timer and clean the water inlet filter screen as described in the Maintenance section. |
| Difficulty programming the timer. | Unfamiliarity with the interface. | Carefully re-read the "Operating Instructions" section, paying close attention to each step for setting time, duration, and frequency. Practice navigating the menu. |
7. Product Specifications
| Feature | Detail |
|---|---|
| Brand | DEWINNER |
| Model Number | G240G |
| Color | Grey |
| Material | Plastic (POM for fitting) |
| Product Dimensions | 5 x 15 x 15 cm (approx. 12.5D x 12.5W x 6.5H Centimetres) |
| Item Weight | 227 g |
| Water Pressure Range | 0.2 MPa to 1 MPa (approx. 29 PSI to 145 PSI) |
| Watering Duration | 10 seconds to 24 hours |
| Watering Interval | 1 hour to 7 days |
| Power Source | 2 x 1.5V AA Alkaline Batteries |
| Waterproof Rating | IP64 |

Image: The sprinkler timer in a rainy environment, highlighting its IP64 waterproof rating, long-lasting durability, heat resistance, and cold resistance.

Image: A comparison table detailing features like battery life, watering duration, waterproof level, watering frequency, water pressure, top connector material, and additional indicators for the DEWINNER Sprinkler Timer versus a generic timer.
8. Warranty & Support
For warranty information or technical support, please contact DEWINNER customer service through the retailer where the product was purchased or visit the official DEWINNER website. Please have your model number (G240G) and purchase details ready when contacting support.




