TECKNET Door Alarms for Kids Safety, Door Alarms When Opened (3 Pack)
Quick take
TECKNET door and window alarms are standalone contact sensors that sound an audible warning when the door or window opens. They are best for renters, apartments, and households that want a loud, simple deterrent and reminder for kids, pets, or frequently used entry points, without smart home wiring or integration. The main buying caveat is placement, the sensor needs to be installed within a tight distance for consistent triggering.
Pros and cons
Pros
- Very loud alert (up to 130 dB) designed to get attention fast.
- Five alarm modes including opening-only alarms and timed alerts (30S or 15S behavior).
- 3-level volume control to better match smaller spaces like apartments and offices.
- Easy setup with sticker-based mounting and bidirectional magnet installation.
Cons
- Not smart-home compatible, there is no app, automation, or remote notification.
- Requires close alignment, the sensor installation distance limit is important for reliable detection.
- Battery replacement will be periodic, low-battery is indicated by a distinct alarm sound.
What buyers think
Buyer-review evidence is consistent around two themes. First, customers repeatedly describe the alarm as easy to install and easy to use. Second, many reviews emphasize that the device is very loud, suggesting it is effective as an audible alert for the intended purpose. Beyond these recurring points, detailed patterns about long-term reliability, battery longevity, or everyday battery replacement frequency are too limited to draw a strong conclusion.
What these door alarms do (and how they work)
These are contact-style door and window alarms. When the magnet and sensor are separated beyond the specified triggering distance, the alarm sounds. That makes them a straightforward choice for situations where you want an immediate noise alert when an entry point opens.
Alarm modes and volume control
You can switch between five alarm modes to match different routines. Modes include options that alarm when the door opens (and stop when it closes), chime-style “ding-ding” behavior, and timed alarm behavior (including 30-second and 15-second style operation). For comfort in shared spaces, the unit also includes 3-level volume control, adjustable using the SET key.
Installation and placement tips that affect reliability
Setup is designed to be simple. The alarm sensor can be mounted on doors or windows using the included sticker approach, and the door magnet can be installed in either orientation (bidirectional magnetic induction). However, proper placement matters: the installation area should be kept clean, and the sensor needs to be positioned within the specified close distance from the magnet reference point. If you have uneven surfaces or thick trim, plan to test the alignment before relying on it.
Battery and low-power behavior
The alarms use built-in LR44 batteries (3 per unit). Low-battery behavior is signaled by an additional short “DIDI” sound after the alarm, which is your prompt to replace batteries before the sensors become unreliable.
Who this is best for
- Parents or caregivers who want audible reminders for door and window openings around kids’ activity areas.
- Pet households looking for a simple “entry opened” warning without smart tech.
- Renters and apartment dwellers who prefer sticker-based mounting and a minimal setup process.
- Small business or office spaces that may want a loud opening alert for specific doors or windows.
Who should consider a different option
- Anyone who needs remote alerts (notifications to a phone, integration with smart home systems) should look for a different category of devices.
- Buyers who can’t reliably place sensors within the required close mounting distance may see inconsistent triggering.
- People seeking silent alerts for shared indoor environments may prefer a less audible solution or a different alarm type.
Pros and cons summary for fast decisions
If your top priority is a loud, immediate audible warning when a door or window opens, TECKNET’s combination of alarm modes, 3-level volume control, and simple mounting is a strong fit. If your priority is connected security monitoring, automation, or mobile alerts, you will likely find this type of standalone alarm limiting.
Price and availability
Check the current price and pack availability for the 3-pack on the retailer page, as costs can vary by timing and seller listings.
FAQs
How loud are TECKNET door and window alarms?
The alarms are rated at up to 130 dB, and they also include 3-level volume control so you can choose a louder or more moderate setting.
Do these door alarms work with smart home systems or an app?
No. They are standalone door and window contact alarms, not smart-home compatible, so there is no app or remote notification feature.
What triggers the alarm?
The alarm sounds when the distance between the magnetic sensor and the magnet exceeds the specified limit, indicating the door or window has opened.
How do you install the magnet and sensor?
Mount the sensor using the included sticker method and place the magnet so that it lines up correctly. The magnet is designed to be installed in either direction, but placement distance from the sensor matters for reliable detection.
What does the low-battery alert sound like?
When batteries are low, the unit emits a short “DIDI” sound after an alarm event, which is a cue to replace the LR44 batteries.
Are there different alarm modes?
Yes. There are five alarm modes, including opening-and-stop behavior, chime-style behavior, and timed alarms (with 15-second or 30-second style operation).
Specifications
| Product Title | TECKNET Door Alarms for Kids Safety, Door Alarms When Opened, Two-Way Door and Window Alarm Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Door Sensor Alarm (3 Pack) |
|---|---|
| Category | Electronics > Security & Surveillance > Home Security Systems |
| Brand | TECKNET |
| Manufacturer | TECKNET |
| Model Number | TK-WA705 |
| Color | White |
| Item Weight | 0.14 Kilograms |
| Power Source | LR44*3 |
| Battery Description | Alkaline |
| Control Method | Push Button |
| Audible Noise | 130 Decibels |
| Mounting Type | Door Mount, Window Mount |
| Maximum Range | 0.78 Inches |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Not Smart Home Compatible |
| Mfr Part Number | TK-WA705 |
| Unit Count | 3.0 Count |
| Item Type Name | home-security-systems |
| Built-In Media | 3Packs |
Available variants
Color
- White
Style
- 3Pack
- 6Pack
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