Wireless Door Opening Sensor: Reed Switch + Siren for Store Security, 15m Range, Budget Options

Hello
I ask my colleagues for help in choosing equipment that will meet my expectations.
Namely, I need something like a wireless reed switch with a siren. More precisely, I would like to mount the equipment in the store because there are cases that when a saleswoman goes to the back of the store someone enters and individual pieces of percentage drinks die
Pulling the wires to the door is unlikely. That's why I'm looking for a set that would consist of a wireless reed switch mounted on the front door and a siren that would be placed in the back room that would signal the entrance to the store. The distance between the siren and the door is about 15 meters. I can easily draw power to the siren. The reed switch is the problem.
I realized that all control panels have such a function, but to be honest, invest a minimum of PLN 1000 for such a purpose to use only this function is a bit much so I am looking for a cheaper solution.
I would be very grateful for your help
greetings

Look for a single-channel remote control.
Reed switch you can buy separately.
Essentially, the remote control button should be short-circuited when the door is opened.

Look for an input beacon device. Most of them use a PIR detector, but they will probably also be found on the contract.
Here is an example with PIR: http://www.eura-tech.eu/sygnalizator-wejsc-eura-ed-40a3-z-czujnik-pir,3,29,23

Hello,

In addition to the reed switch, I would think of a motion detector. The reed switch itself may not pass the exam, it is enough that one person does not close the door and the other one enters without violating the reed switch. Read about sensors from the Elmes offer:
http://www.elmes.pl/pl/kategorie-produktow/detekty and the receiver from their offer and a sounder with volume control, e.g. https://www.itchome.pl/sawa-2r-sygnalizator- internal-acoustic-adjustable-p-2816.html
Of course, you will need a power supply.

Greetings.

I will stick to the topic with a small question. It's also about the basement. Will I find such an alarm kit with at least one entrance to which a door contact would be connected. Alarm without any siren, only notification via GSM on phone. I have AC 230V in the room. Preferably something in the range up to approx. PLN 200.

Visitor chime. Look for.

Zbigniew 400 wrote:

Visitor chime. Look for.

As much as I noticed that this device is with a motion sensor, I would like it on a reed switch. Secondly, it has a gong, and I don't want any sounds in the basement just a phone notification. And I didn't find a device with a GSM module.

What about the Satlink VS-GSM10AB set? I know it's Chinese but is it worth anything? Or maybe something better type ELMES CB32 + reed switch?