UltraPro Window and Door Alarm 6 Pack
- Power source: Battery
- Control Type: Touch
- Sensor Technology: Contact Sensor
- Item Weight: 0.59 pounds
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A budget 6-pack of standalone door and window alarms for indoor use, useful for covering several entry points at once with no ongoing cost.
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ASIN: B08PCDZTVDModel: 49721Category: Home Security Systems
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Overview
The UltraPro Personal Security Window and Door Alarm is a 6-pack of standalone, battery-operated alarms that sound a 120-decibel siren or chime when a magnetic contact separates, with no app or hub involved.
It is built for indoor use only, per the listing, which rules out a garage door exposed to weather or an RV's exterior hatch despite being marketed for those spaces. A side switch picks off, chime or alarm on each unit independently, so a household can mix modes across doors. Six units in one pack make it the higher-coverage option next to Philips' 4-pack using a similar mechanism.
- Set of 6 door and window alarms
- 120dB alarm or chime, switch-selectable
- Battery-operated with low-battery LED
- Indoor installation only
Who it's for
Suits a household, dorm or small office covering several interior entry points at once without any subscription. Anyone needing outdoor-rated coverage or remote app alerts should look at a different product.
Pros and cons
- Six units cover more entry points than a 4-pack at similar cost
- No app, hub or monthly fee
- Switch between chime and 120dB alarm per unit
- Tape mounting needs no tools or drilling
- Rated for indoor installation only, despite garage and RV marketing
- No phone notifications since it is fully standalone
Performance notes
Each unit relies on a magnetic sensor pair; separating them while armed sounds either a 120-decibel siren or a chime depending on the side switch. Four LR44 batteries run each alarm, with a front LED indicating low battery, and double-sided tape handles mounting without drilling.
Specifications
| Brand | UltraPro |
|---|---|
| Model | 49721 |
| Dimensions & fit | |
| Item Weight | 0.59 pounds |
| Item Dimensions L X W X H | 1.6 × 0.4 × 4.6 inches |
| Size | 6 count |
| Capacity & performance | |
| Audible Noise | 120 db |
| Power & efficiency | |
| Power source | Battery |
| Battery Description | Alkaline |
| Construction & materials | |
| Color | White |
| Compatibility & installation | |
| Mounting Type | Door Mount |
| Compatible devices | Home Security System |
| Included components | |
| Unit Count | 6 |
| Other details | |
| Control Type | Touch |
| Sensor Technology | Contact Sensor |
| Number of items | 6 |
| Builtin media | 6 Window Door Alarms |
| Mfr Part Number | 49721 |
| Item Type Name | GE Personal Security Window and Door Alarm |
Frequently asked questions
Can the UltraPro 49721 alarm be installed outdoors?
No, the listing specifies indoor installation only despite being marketed for garages and RVs.
Does the UltraPro Personal Security Alarm need an app?
No, it is a standalone battery-operated alarm with no app, hub or monthly fee.
How many alarms come in the UltraPro 49721 pack?
This pack includes six individual door and window alarms.