DOOMAY Rechargeable Digital Kitchen Timer - Large LED Magnetic Timer Sound Activated, Brightness and Volume Adjustable, Ideal for Cooking, Classroom, Office and for Kids, Teacher, Seniors to Use

1. Introduction

Thank you for choosing the DOOMAY Rechargeable Digital Kitchen Timer. This versatile device combines a large LED display timer with an alarm clock function, designed for various time management needs in the kitchen, classroom, office, and more. Its key features include adjustable brightness and volume, sound activation, and a magnetic back for convenient placement.

DOOMAY Rechargeable Digital Kitchen Timer showing 199 minutes 59 seconds

Figure 1: DOOMAY Rechargeable Digital Kitchen Timer

Overview of DOOMAY Digital Timer features including countdown, alarm clock, 12/24 hour, volume, brightness, memory, large screen, rechargeable, sound-activated, and magnetic functions.

Figure 2: Key features of the DOOMAY Digital Timer

2. Setup

2.1 Charging the Timer

The DOOMAY Digital Timer comes with a built-in rechargeable battery. Before first use, or when the low power icon appears on the display, charge the device using the provided USB-C cable.

Connect the USB-C end of the cable to the timer's charging port (DC 5V).
Connect the USB-A end to a standard USB power adapter (output 5V/1A recommended, not included) or a computer USB port.
A charging indicator may appear on the screen. The timer is fully charged when the indicator changes or disappears.

Image showing the DOOMAY timer being charged via a USB-C cable, with a low battery icon indicating the need for charging.

Figure 3: Charging the timer and low battery indicator

2.2 Placement Options

The timer offers flexible placement options:

Magnetic Attachment: The timer features strong magnets on its back, allowing it to be securely attached to metallic surfaces like refrigerators or whiteboards. Two rubber pads are included to prevent slipping.
Desktop Placement: The timer can also be placed on any flat surface, such as a kitchen counter, desk, or bedside table.

Image showing the strong magnets on the back of the DOOMAY timer and it being attached to a refrigerator.

Figure 4: Magnetic attachment feature

3. Operating Instructions

3.1 Overview of Controls

The timer features intuitive buttons on its top surface for easy operation. Refer to Figure 5 for button identification.

Close-up of the DOOMAY timer showing buttons for M/+, S/-, CLEAR, MODE, ST/SP, and indicating 3 levels of brightness, low battery icon, red digits for last 50 seconds, and clear LED display with big digits.

Figure 5: Timer controls and display features

M/+ Button: Increases minutes or digits.
S/- Button: Decreases seconds or digits.
CLEAR Button: Clears the set time to 00:00.
MODE Button: Switches between Timer, Clock, and Alarm modes.
ST/SP Button: Starts or pauses the timer/alarm.

3.2 Timer Function (Countdown/Count Up)

The timer supports both countdown and count-up functions, up to 199 minutes and 59 seconds.

Setting Countdown Time: In Timer mode, use the M/+ and S/- buttons to set the desired time. Press CLEAR to reset.
Starting/Pausing: Press ST/SP to start the countdown. Press again to pause.
Count-Up Function: When the timer is at 00:00, press ST/SP to start counting up.
Last Minute Indication: During countdown, all digits will turn red when less than 1 minute remains, providing a clear visual alert.
Alarm Reset: When the alarm rings, press any button to stop it and return to your last set time.

Image showing the countdown timer set to 199:59 and a count-up timer at 00:00, with a family cooking and people exercising in the background.

Figure 6: Countdown and Count-up functions

Image showing the timer display turning red when the countdown reaches 00:59, indicating the last minute.

Figure 7: Digits turn red during the last minute of countdown

3.3 Clock and Alarm Functions

The timer can also function as a digital clock and a single alarm.

Switching Modes: Press the MODE button to cycle through Timer, Clock, and Alarm modes.
Setting Clock Time: In Clock mode, use M/+ and S/- to adjust hours and minutes.
Setting Alarm: In Alarm mode, use M/+ and S/- to set the alarm time. Press ST/SP to activate/deactivate the alarm.

Image showing the DOOMAY timer functioning as an alarm clock on a bedside table, with a person sleeping in the background.

Figure 8: Timer used as an alarm clock

3.4 Brightness and Volume Adjustment

Customize the display brightness and alarm volume to suit your environment.

Brightness: Use the switch on the side of the timer to select between High, Low, or Off display brightness.
Volume: Use the switch on the side of the timer to select between Loud (80-90dB), Soft (60-70dB), or Mute alarm volume. When set to Mute, the time will flash without an audible alarm.

Image illustrating the three levels of brightness: High light, Low light, and Off, controlled by a side switch.

Figure 9: Three levels of display brightness

Image showing three volume levels: Loud (80-90dB), Soft (60-70dB), and Mute, with a person doing yoga in the background.

Figure 10: Three levels of alarm volume

3.5 Sound-Activated Display (Power Saving)

To conserve battery, the display will automatically go into sleep mode after 30 seconds of quiet when powered by battery. It can be reactivated by sound (e.g., a clap) or by pressing any button.

Note: When the timer is actively running a countdown or count-up, the display will remain on for continuous visibility. If using the device primarily as a clock, it is recommended to keep it plugged in to ensure the display remains continuously active.

Image demonstrating the power-saving feature where the screen automatically turns on when it detects noise and turns off after 30 seconds of quiet.

Figure 11: Sound-activated display for power saving

3.6 Memory Function

The timer has a memory function that recalls the last set time. If you stop a timer and then press the CLEAR button, it will return to the previously set time, allowing for quick reuse of common intervals.

Image illustrating the memory function, where pressing a button after the timer reaches zero recalls the last set time, for example, 05:00.

Figure 12: Memory function for recalling last set time

3.7 Official Product Video

Video 1: Overview of the DOOMAY Rechargeable Digital Timer, demonstrating its features including time display, countdown, alarm, sound activation, adjustable volume, brightness, and magnetic attachment. (Source: DOOMAY Seller)

4. Maintenance

4.1 Cleaning

To clean the timer, gently wipe the surface with a soft, dry cloth. For stubborn marks, a slightly damp cloth can be used, followed by immediate drying. Do not use abrasive cleaners or immerse the device in water.

4.2 Battery Care

To prolong battery life, avoid fully discharging the timer frequently. Charge the device when the low power icon appears. If storing the timer for an extended period, ensure it is fully charged before storage and recharge it every few months.

5. Troubleshooting

Problem	Possible Cause	Solution
Display is off or dim.	Power-saving mode activated (on battery power) or battery is low. Brightness set to 'Off'.	Tap the timer or make a sound to activate the display. Charge the timer if the low battery icon is visible. Check the brightness switch on the side and set it to 'Low' or 'High'.
Alarm does not sound.	Volume set to 'Mute'. Alarm not activated.	Check the volume switch on the side and set it to 'Soft' or 'Loud'. Ensure the alarm icon is displayed in Alarm mode.
Timer does not respond to button presses.	Device may be frozen or battery is completely depleted.	Connect the charger to see if it powers on. If unresponsive, locate the small reset button (often a pinhole) and press it gently with a paperclip to reset the device.
Digits turn red before 1 minute.	This is an intended feature.	No action required. This visual cue indicates the final minute of the countdown.

6. Specifications

Feature	Detail
Model Number	5299
Dimensions (D x W x H)	1.14"D x 4.92"W x 2.75"H
Screen Size	5.3 Inches
Weight	6.3 ounces
Material	Acrylonitrile Butadiene Styrene
Power Source	Rechargeable Lithium Polymer Battery (included)
Charging Input	5V/1A (USB-C)
Max Timer Duration	199 Minutes 59 Seconds
Volume Levels	Loud (80-90dB), Soft (60-70dB), Mute
Brightness Levels	High, Low, Off

7. Warranty and Support

DOOMAY is committed to providing quality products. For any questions, concerns, or support needs regarding your DOOMAY Rechargeable Digital Kitchen Timer, please contact our customer service. You can find contact information and additional resources by visiting the official DOOMAY store on Amazon:

Visit the DOOMAY Store on Amazon

Please retain your purchase receipt for warranty purposes.

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DOOMAY 5299

DOOMAY Rechargeable Digital Kitchen Timer User Manual