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The DOIDF-IEGVN-038 is a compact, magnetic contact alarm system delivering an 80-decibel alert for doors, windows, and pool gates. It features remote control synchronization for easy arming/disarming outdoors, supports multiple remotes, and offers versatile use cases including child and elder safety. Lightweight and battery-powered, it’s designed for simple surface mounting and reliable long-term security without UL 2017 certification.








| ASIN | B078B7LBSG |
| Batteries | 1 12V batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Battery Cell Type | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | 370,826 in DIY & Tools ( See Top 100 in DIY & Tools ) 312 in Home Security Door & Window Sensors |
| Control method | Remote |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,303) |
| Date First Available | 26 Jan. 2018 |
| Item Package Quantity | 1 |
| Item Weight | 45.4 g |
| Item model number | SF03RCD |
| Item weight | 45 g |
| Manufacturer | Changzhou Hengdun Electronic Technology Co Ltd |
| Mounting type | Surface |
| Noise level | 80 Decibels |
| Number of batteries | 1 12V batteries required. |
| Part Number | SZSF03R |
| Product Dimensions | 4 x 1.5 x 8.5 cm; 45.36 g |
| Sensor technology | Contact Sensor |
| Size | 2 Count (Pack of 1) |
| Special Features | Magnetic |
| UPC | 664248657237 |
| Voltage | 12 Volts |
A**N
Great little addition for peace of mind.
Had these on about a year now and really impressed, they are SO loud! We use them on our front and back door for extra peace of mind. Easy enough to put on and they've stayed on for a year and still going strong. Really impressed and definitely recommend for extra precaution, especailly becasue we have pets so we can't turn our alarm on at night so this is just nice to have and we know it will wake us up!
D**K
Great alarm
Excellent value for 2 alarms
M**E
HENDUN Wireless Door Alarm with RemoteIn
They work really well and they are cheap well worth the money
A**A
Too loud
Gosh! Still trying how to reduce the noise especially since I’m leaving in 2bedroom
N**S
Loud and ideal
These came in perfect for what I needed them for. You do how ever need to check the batteries every now and again to make sure they are still working. Came with its own fob to activate and deactivate
A**Z
La alarma funciona bastante bien, tiene un sonido fuerte, lo unico que no me agradó mucho es que la alarma deja de sonar si vuelves a cerrar la puerta o ventana. Una de las alarmas venia con parches de pegamento viejo (tuve que retirarlos con calor y ponerle nuevos) pero en general cumplen con la función de "alarmar" y que se percibia la alarma en toda la casa.
B**S
gut und laut und sicher
A**L
Second time I’ve purchased it as I moved house and it’s great! Super loud so you’ll hear it at night, only issues that it comes with one remote.
D**A
Der HENDUN Kabellose Türalarm hat meine Erwartungen voll erfüllt. Die Installation war kinderleicht und in nur wenigen Minuten erledigt. Man muss lediglich den Hauptalarm und den Magnetsensor an Tür oder Fenster kleben – ganz ohne Bohren oder aufwändiges Kabelverlegen. Das System war sofort einsatzbereit. Die mitgelieferte Fernbedienung ist sehr praktisch. Man kann den Alarm einfach scharf- und unscharf stellen, was im Alltag sehr komfortabel ist. Was mich besonders beeindruckt hat, ist die Lautstärke des Alarms – mit über 100 dB ist er wirklich ohrenbetäubend und schreckt potenzielle Eindringlinge effektiv ab.
X**E
I tried out a few different options for a DIY home alarm system and these were the ones that absolutely fit the bill. I started out with a pair of them to test out and ended up buying 3 more sets. Why? 1) Extremely easy to set up. There is a little give in the space needed between the magnets and the actual alarm, so if your windows/ doors and frames aren't flush, no problem 2) Range! I can arm and disarm the units in my basement from my second floor. I was very surprised and happy about this! 3) Compatibility of components- I had to watch a Youtube video to learn how to do this, but it turns out, you can pair every single transmitter to work with ALL the alarms, and ALL transmitters can be paired to activate every single alarm. 4) Abundance of key fob transmitters. Every alarm comes with a transmitter so everyone in the family can have one that works the same as the next 5) Panic button: because I can activate the alarms from such a long distance, I use one of the transmitters as a panic button in my bedroom. If I hit the "lightning bolt" button, I can get ALL the alarms in the entire house to go off together. If that doesn't scare the $%#t out of an intruder, then nothing will. 6) Doorbell function: you can set the alarms to give off a double ring, just to alert you when someone opens a door or window. It's pretty loud, but would be good if you're outside or in the basement and want an alert of this kind. 7) Cost: I paid a lot more more for a lot less when I first started testing out different components for my home security. I returned the others after I saw what this system could do. 8) Power: I like that they run on batteries, so if power gets cut, they will still work. Cons? No internet alerts when your system gets set off. This is a real time, intruder focused system, not a monitoring system (so no monthly fees- another pro). To address this, I also bought a couple of Reolink security cameras to provide eyes into my home. They alert me if motion is detected inside the house. Because it has 2-way audio, I should be hearing a hell of a racket if someone actually gets in. Anyway, I am very happy with the synergy between these two systems.
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