1. Introduction
The DAYTECH Refrigerator Door Alarm is designed to monitor the status of doors and windows, providing alerts when they remain open for a set period. This device helps prevent food spoilage, reduce energy consumption, and enhance safety by reminding users to close doors. It features adjustable volume, multiple delay settings, and two alarm modes.
2. Product Overview
2.1 Key Features
- Adjustable Delay Time: Set alerts for 1, 2, 3, or 4 minutes after a door or window is opened.
- Volume Control: 5 levels of volume adjustment, ranging from 0dB (silent) to 120dB.
- Dual Alarm Modes: Choose between Chime mode for gentle reminders or Alarm mode for a louder alert.
- LED Indicator: Provides visual alerts for door status and alarm activation.
- Easy Installation: Self-adhesive mounting for quick setup.
- Low Battery Warning: Notifies users when batteries need replacement.
- Versatile Application: Suitable for refrigerators, freezers, windows, cabinets, and various doors.
2.2 Components
The DAYTECH Refrigerator Door Alarm consists of two main parts: the main alarm unit and a magnetic strip. The main unit houses the buzzer, LED indicator, control buttons, and battery compartment. The magnetic strip is a passive component that interacts with the main unit.

Image 1: Diagram illustrating the main components and dimensions of the DAYTECH Refrigerator Door Alarm. Key features shown include the buzzer, LED indicator, Chime/Alarm/OFF switch, volume control, and work mode set key. The dimensions are approximately 3.9 inches in length, 1.6 inches in width, and 0.86 inches in thickness for the main unit, with the magnet measuring 1.8 inches in length and 0.47 inches in thickness.
3. Setup and Installation
3.1 Battery Installation
- Locate the battery compartment cover on the back of the main alarm unit.
- Carefully slide or pry open the cover. Some users may find a thumbnail or small tool helpful to budge the cover.
- Insert two AAA batteries into the compartment, ensuring correct polarity (+/-). Batteries are typically included with the product.
- Replace the battery compartment cover securely.
3.2 Mounting the Alarm
The alarm uses a self-adhesive method for installation. Ensure the mounting surface is clean, dry, and smooth for optimal adhesion.
- Identify the desired location for the alarm on your refrigerator, freezer, window, or door frame. The main unit and the magnetic strip must be mounted adjacent to each other.
- Peel off the protective backing from the adhesive tape on both the main alarm unit and the magnetic strip.
- Attach the main unit to one part of the door/frame and the magnetic strip to the other, ensuring they are aligned. There are usually triangle markers on both parts that should be aligned.
- Crucially, the gap between the main unit and the magnetic strip must be less than 2.5 cm (0.98 inches) when the door is closed. A larger gap will prevent the alarm from functioning correctly.
- Press firmly for several seconds to ensure secure adhesion.

Image 2: Step-by-step guide for easy installation. This image illustrates peeling the adhesive tape from the alarm unit and the correct alignment of the main unit and magnetic strip on a refrigerator door, emphasizing the critical 2.5 cm maximum gap for proper operation.

Image 3: Examples of suitable installation locations for the alarm, such as refrigerators, freezers, sliding doors, drawers, and windows. The image reinforces the requirement for the main unit and magnet to be within 2.5 cm of each other.
4. Operating Instructions
4.1 Power On/Off and Mode Selection
On the side of the main alarm unit, locate the slide switch. This switch controls the alarm's power and sound mode:
- OFF: Turns the alarm off.
- CHIME: Activates the alarm in chime mode, producing a series of beeps.
- ALARM: Activates the alarm in siren mode, producing a loud siren sound.
4.2 Volume Adjustment
Use the volume button on the side of the main unit to cycle through the 5 available volume levels, from silent (0dB) to maximum (120dB). Select a volume appropriate for your environment.
4.3 Delay Time Setting (Work Mode)
The alarm features four distinct delay modes, which determine how long the door can remain open before an alert sounds. Use the 'Work Mode Set Key' button on the side of the main unit to cycle through these modes:
- Mode 1 (1 Minute Delay): Alert sounds after 60 seconds. Beeps every 15 seconds until the door closes. Ideal for refrigerators or basement doors.
- Mode 2 (2 Minute Delay): Alert sounds after 2 minutes. Beeps every 10 seconds until the door closes. Suitable for garages or shed doors.
- Mode 3 (3 Minute Delay): Alert sounds after 3 minutes. Beeps every 5 seconds until the door closes. Useful for windows or cabinet doors.
- Mode 4 (4 Minute Delay): Alert sounds after 4 minutes. Beeps every 20 seconds until the door closes. Appropriate for office or shop doors.

Image 4: Visual representation of the four operational modes, detailing the delay time and alert frequency for each, along with suggested applications.
5. Maintenance
5.1 Battery Replacement
The alarm unit will emit a shorter beep duration when the batteries are low, indicating that replacement is necessary. Refer to Section 3.1 for detailed instructions on battery installation.
- When the low battery warning occurs, replace both AAA batteries promptly to ensure continuous operation.
- Always use new alkaline AAA batteries for optimal performance.
5.2 Cleaning
Wipe the alarm units with a soft, dry cloth. Do not use abrasive cleaners or immerse the units in water.
6. Troubleshooting
- Alarm not sounding or false alarms:
- Check the gap between the main unit and the magnetic strip. It must be less than 2.5 cm (0.98 inches) when the door is closed.
- Ensure the triangle markers on both parts are aligned.
- Verify that the batteries are correctly installed and not depleted. Replace if necessary.
- Check the mode switch; ensure it is set to CHIME or ALARM, not OFF.
- Alarm volume too low or too high:
- Adjust the volume using the dedicated volume button on the side of the main unit.
- Alarm sounds immediately or not at all when door opens:
- Confirm the selected delay mode (Mode 1, 2, 3, or 4) is appropriate for your needs. Adjust using the 'Work Mode Set Key'.
7. Specifications
| Specification | Detail |
|---|---|
| Model Number | DA10SV-2-UK |
| Manufacturer | DAYTECH |
| Product Dimensions | 10 x 5 x 8 cm (Main Unit); 40L x 20W x 100H mm (Product dimensions) |
| Item Weight | 150 Grams |
| Power Source | Battery Powered |
| Batteries Required | 2 x AAA batteries (included) |
| Battery Cell Type | Alkaline |
| Installation Method | Self-Adhesive |
| Control Method | Push Button / Slide Switch |
| Noise Level | 0 to 120 Decibels |
| Maximum Range (Sensor Gap) | 2.5 cm (0.98 inches) |
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact DAYTECH customer service directly. Keep your purchase receipt as proof of purchase.





