Fosmon C-10800FCUS

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Fosmon 7 Day Digital Outlet Timer Instruction Manual

Model: C-10800FCUS

Introduction

This manual provides detailed instructions for the safe and efficient operation of your Fosmon 7 Day Digital Outlet Timer. This device is designed to automate the power supply to various indoor electrical appliances, offering programmable on/off cycles over a 7-day period, including a random function for enhanced security. Please read this manual thoroughly before use and retain it for future reference.

Two Fosmon 7 Day Digital Outlet Timers, white, with digital displays showing time and programming options.

Image: Two Fosmon 7 Day Digital Outlet Timers, showcasing their compact design and digital interface.

Safety Information

  • For indoor use only. Do not expose to moisture or extreme temperatures.
  • Do not exceed the maximum load capacity of 15A/1875W.
  • Ensure the timer is securely plugged into a grounded outlet.
  • Do not disassemble or attempt to repair the device. Contact customer support for assistance.
  • Keep out of reach of children.
  • Unplug the timer from the wall outlet before cleaning.

Product Overview

The Fosmon 7 Day Digital Outlet Timer features a clear digital display and intuitive buttons for programming. It includes two grounded outlets, allowing control of two devices simultaneously. A built-in battery backup retains settings during power outages.

Key Features:

  • 8 Individual Programs: Set up to 8 distinct ON/OFF cycles daily or weekly.
  • Random Function: Activates lights or devices at random intervals to simulate occupancy.
  • Dual Grounded Outlets: Control two devices from a single timer.
  • Battery Backup: Retains programmed settings during power interruptions.
  • Compact Design: Minimizes obstruction of adjacent outlets.
Fosmon digital timer plugged into a wall outlet, with icons illustrating automatic operation, battery backup, space-saving design, easy programming, and daily repeat.

Image: The timer's compact design and key features such as automatic operation and battery backup.

A person standing next to a coffee maker, with a Fosmon digital timer plugged into a wall outlet, connected to a smartphone. The text highlights 'User-Friendly' features.

Image: The timer in a kitchen setting, demonstrating its user-friendly interface and application with common appliances.

Setup

  1. Initial Charge: Plug the timer into a live electrical outlet for at least 30 minutes to charge the internal battery. The display will activate.
  2. Resetting the Timer: If the display is erratic or unresponsive, use a pointed object (like a pen tip) to press the recessed Reset button located on the front panel. This will clear all previous settings.
  3. Setting Current Time:
    • Press and hold the CLOCK button.
    • While holding CLOCK, press WEEK to set the current day of the week.
    • While holding CLOCK, press HOUR to set the current hour (AM/PM will adjust automatically).
    • While holding CLOCK, press MIN to set the current minute.
    • Release the CLOCK button. The current time is now set.
Close-up of the Fosmon digital timer's display and control buttons.

Image: A detailed view of the timer's digital display and programming buttons.

Operating Instructions

Programming ON/OFF Cycles (Up to 8 Programs):

  1. Press the PROG button once. The display will show "1 ON". This is your first ON program.
  2. Press WEEK to select the day(s) for this program. Options include individual days, weekdays, weekends, or all 7 days.
  3. Press HOUR and MIN to set the desired ON time.
  4. Press PROG again. The display will show "1 OFF". This is your first OFF program.
  5. Press WEEK to select the day(s) for this OFF program (usually matching the ON program).
  6. Press HOUR and MIN to set the desired OFF time.
  7. Repeat steps 1-6 for additional programs (2 ON/OFF through 8 ON/OFF). Press PROG to cycle through programs.
  8. After setting all desired programs, press the CLOCK button to return to the current time display.
Digital timer displays showing examples of 8 ON/OFF programs, with times like 8:30 AM ON and 10:30 PM OFF.

Image: Examples of setting multiple ON/OFF programs for various days of the week.

A hand pressing a button on the Fosmon digital timer, which is plugged into a wall outlet.

Image: User interaction with the timer's buttons during programming.

Manual Override Modes:

Press the MANUAL button to cycle through the following modes:

  • ON: The connected device will remain ON indefinitely.
  • OFF: The connected device will remain OFF indefinitely.
  • AUTO: The timer will operate according to the programmed ON/OFF cycles. This is the standard operating mode.

Random Function:

The random function is designed to deter potential intruders by turning connected lights or devices ON and OFF at irregular intervals. This function only works when the timer is in AUTO mode.

  • To activate the random function, press the R button. An "R" will appear on the display.
  • To deactivate, press the R button again. The "R" will disappear.
A house at night with various lights on, and a silhouette of a person outside, illustrating the security benefit of the random function.

Image: The random function helps enhance home security by simulating occupancy.

Maintenance

  • Clean the timer with a dry, soft cloth. Do not use liquid cleaners or aerosols.
  • Ensure the timer is unplugged before cleaning.
  • Store in a cool, dry place when not in use.

Troubleshooting

ProblemPossible CauseSolution
Display is blank or erratic.Internal battery is low or needs reset.Plug the timer into a live outlet for 30 minutes to charge. Press the Reset button.
Device does not turn ON/OFF at programmed times.Timer is not in AUTO mode, or program is incorrect.Press MANUAL until "AUTO" is displayed. Verify program settings (ON/OFF times, days).
Random function is not working.Timer is not in AUTO mode, or random function is not activated.Ensure timer is in AUTO mode. Press the R button to activate (an "R" should appear).
Connected device is not receiving power.Timer is OFF, or device is faulty.Check if the timer is in ON or AUTO mode with an active ON program. Test the connected device in a different outlet.

Specifications

  • Model Number: C-10800FCUS
  • Voltage: 125V AC
  • Current: 15A
  • Wattage: 1875W
  • Outlets: 2 Grounded Outlets
  • Programs: 8 ON/OFF programs
  • Battery: Nonstandard Battery (included, non-replaceable)
  • Dimensions: Approximately 3.5 x 3.5 x 1.7 inches (88.9 x 88.9 x 43.5 mm)
  • Certifications: ETL Listed
Fosmon digital timer plugged into a wall outlet, with dimensions labeled as 3.5 inches (88.9 mm) in height and width, and 1.7126 inches (43.5 mm) in depth. ETL Intertek certification logo is visible.

Image: Physical dimensions and ETL certification details of the timer.

Warranty and Support

Fosmon provides a Limited Lifetime Warranty for this product. This warranty covers defects in materials and workmanship under normal use. For warranty claims or technical support, please contact Fosmon customer service.

Customer Support: Refer to the official Fosmon website or product packaging for contact information.

© 2025 Fosmon. All rights reserved.

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