Introduction
Thank you for choosing the GEFU Optico Timer. This convenient mechanical timer is designed for precise timekeeping in your kitchen or home, with a duration range of 0 to 60 minutes. Its clear, red-marked display and magnetic back make it a practical and easy-to-use tool for various timing needs.
Please read this manual carefully before using the timer to ensure proper operation and maintenance.
Safety Information
- Do not immerse the timer in water or any other liquid.
- Avoid dropping the timer or subjecting it to strong impacts, as this may damage the internal mechanism.
- Keep out of reach of small children.
- Do not attempt to disassemble or repair the timer yourself. Refer to qualified personnel for service.
- Ensure the timer is placed on a stable surface or securely attached to a magnetic surface to prevent it from falling.
Product Overview
The GEFU Optico Timer features a durable stainless steel and plastic construction, a clear dial with a red indicator, and a strong magnet for versatile placement.

Image: Front view of the GEFU Optico Timer, showing the black dial with white numbers from 0 to 60, and a red segment indicating remaining time. The timer has a stainless steel casing.
Components:
- Dial/Timer Knob: Used to set the desired time.
- Time Display: Shows the remaining time, with a red segment for clear visibility.
- Magnetic Back: Allows for easy attachment to metallic surfaces like refrigerators or ovens.
- Stainless Steel Casing: Provides durability and a sleek appearance.
Setup
The GEFU Optico Timer requires no batteries or complex setup. It is ready for use right out of the box.
- Unpack: Carefully remove the timer from its packaging.
- Placement: Place the timer on a flat, stable surface, or attach it to any magnetic surface such as a refrigerator door or oven side using its built-in magnet.

Image: The GEFU Optico Timer magnetically attached to the side of a refrigerator in a kitchen setting, demonstrating its convenient placement.
Operating Instructions
The Optico Timer operates with a simple wind-up mechanism.
- Wind Up: To activate the timer, turn the dial clockwise all the way to the 60-minute mark. This action winds the internal spring mechanism.
- Set Time: After winding, turn the dial counter-clockwise to the desired time setting (e.g., 10 minutes, 30 minutes). The red segment on the dial will indicate the set duration.
- Start Timing: The timer will begin counting down immediately after setting the time.
- Alarm: Once the set time has elapsed and the dial reaches the "0" mark, the timer will sound an audible alarm to indicate that the time is up.
Note: For accurate timing and to ensure the alarm sounds, it is crucial to first wind the timer fully to 60 minutes before setting it to your desired shorter duration.
Maintenance
- Cleaning: Wipe the timer with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.
- Storage: Store the timer in a dry place when not in use.
- Avoid Extreme Temperatures: Do not expose the timer to extreme heat or cold, as this may affect its mechanism.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer does not ring or rings faintly. | Timer was not fully wound to 60 minutes before setting the desired time. | Always wind the timer clockwise to the 60-minute mark first, then turn counter-clockwise to your desired time. |
| Timer is inaccurate. | Internal mechanism issue or improper winding. | Ensure proper winding procedure. If the issue persists, the timer may require replacement. |
| Magnet is not holding securely. | Surface is not metallic or is too thin/uneven. | Ensure the surface is a flat, ferrous metal. Consider placing the timer on a stable flat surface instead. |
Specifications
- Model: GF12310
- Brand: GEFU
- Timing Range: 0 - 60 minutes
- Material: Stainless Steel, Plastic, Steel
- Color: Multicolored (primarily silver/black with red indicator)
- Product Dimensions: Approximately 2.4"D x 2.4"W x 3.19"H (6.1 cm diameter)
- Item Weight: Approximately 1.76 ounces (0.11 Pounds)
- Mechanism: Mechanical, Wind-up
- Features: Strong magnet on back, precise clock mechanism, red marked display.
Warranty and Support
GEFU products are manufactured to high-quality standards. For specific warranty information or support inquiries, please refer to the GEFU official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
For further assistance, you may visit the GEFU Store on Amazon: GEFU Store





