VOXON Wireless Door and Window Alarm Sensor 2-Pack (100dB) for Home, Shop & Kids Safety
Product description
The essentials
If you’re after a simple extra layer of alerting around doors and windows, this VOXON wireless magnetic sensor set is designed for exactly that. The idea is straightforward: when the magnet and alarm separate beyond a small gap, the unit can trigger an alarm (rated at 100dB) and keep sounding until the window or door is closed again. On paper, it’s the kind of “quick warning” security that suits everyday spaces where you may not want full-blown alarm systems.
The 2-pack format is helpful because it lets you cover at least two access points without having to buy extra parts straight away. There’s also an OFF/CHIME/ALARM switch, so you can use it for silent notification (chime) or for a louder alert when you want it.
What matters most in use
The magnetic sensor approach is generally practical because it relies on physical separation rather than motion cameras or complex setups. In real-life terms, it’s the difference between “I hope someone’s noticed” and “I’ll hear it if a door or window is opened.”
A typical moment you might use this: you open the back door to bring something in, then close it again. If you’ve set it to CHIME, you’ll get a brief sound that confirms the contact. If someone opens a window while you’re away (or if a child tries an unauthorised exit route), the system is intended to react once the separation threshold is crossed.
One limitation worth noting: these are open/closed alerts, not intrusion detection of movements inside a room. So if your main goal is to “detect someone in the house”, you’d still need to think about the broader system design.
Key takeaways (the good and the not-so-great)
Where it stands out is the combination of clear modes and a loud siren option. The OFF/CHIME/ALARM switch gives you flexibility: chime for routine awareness, alarm mode for when you want stronger noise.
It also includes batteries (four LR44) and the alarm continues sounding once triggered until you close the door or window. The stated battery life is up to 3 years, which is decent for a device you’re meant to leave in place.
That said, it’s not perfect for every scenario. The sensor relies on the magnet being positioned properly, and the product specifies that the alarm keeps going if separation is more than 20 mm—so if your window frames don’t line up neatly, you’ll want to spend a little time getting the placement right.
Setup and placement
Installation is described as easy, with mounting via adhesive tapes. That’s often a good match for rented flats or for people who don’t want to drill. It’s also the kind of setup that helps you deploy it quickly around a front door and a single key window.
However, adhesive-based mounting is one of those “depends quite a lot” areas: surfaces matter. If you’re planning to stick it on textured or dusty areas, you’ll likely get better results by cleaning and aligning carefully before pressing the sensor and magnet into position.
Tech specs
- Type: Wireless door and window alarm sensor set
- Modes: OFF / CHIME / ALARM
- Alarm output: 100dB loud siren
- Sensor trigger gap: more than 20 mm (0.78 inches) between alarm and magnet
- Power: four LR44 batteries (included)
- Battery life (stated): up to 3 years
Who it suits (and who should look elsewhere)
It makes sense if you want a practical, low-fuss alert for openings around your home, shop, or other premises—especially for families who want an extra nudge for kids safety. The “chime” mode can feel less alarming day-to-day, while the “alarm” mode is there for when access shouldn’t happen.
It may not suit you if you need comprehensive security monitoring. This is a door/window contact style alarm, so it won’t replace sensors designed for detecting movement inside a space.
Is it worth it?
Worth buying if you’re looking for a wireless magnetic contact that’s easy to mount with adhesive tape, offers chime confirmation for daily use, and can raise a loud 100dB alarm when a door or window is opened beyond a set gap. The included batteries and 2-pack coverage also help you get going without immediate extra purchases.
Better avoided if you expect it to act like full home security or detect presence inside rooms. And do double-check the placement: the stated separation threshold (20 mm) means alignment matters more than with some other “smart” sensing approaches.
Mini FAQ
How does the alarm trigger?
It’s designed to trigger when the magnet and alarm unit are separated by more than 20 mm.
Can it be used quietly?
Yes—there’s an OFF/CHIME/ALARM switch, so you can set it to CHIME for a less intrusive alert.
Do I need to buy batteries?
No, the unit is powered by four LR44 batteries and they are included.
Where can I use it?
It’s positioned for homes and also mentions use cases like apartments, mobile homes, offices, hotels, garages and shops.