🔊 Como CONSTRUIR um PODEROSO ALARME caseiro!

⚡️ FREE CLASS: How to Easily Install a Complete Electrical Installation from Scratch, Even if You're Not a Professional Electrician: ➽ https://eletr.co/aula?utm_content=yt1... ------ 📣 FAAALA ENGEHALL COMMUNITY 📣 Join our WhatsApp community to receive valuable electrical tips and updates, important information, and much more. 😉 👉 https://eletr.co/fala-eng?utm_content= ------ Did you like this video? 😍 ✔️ Leave your comment and share with your friends ✔️ Follow us on social media ➽ https://eletr.co/links - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 👉 NR10 Course with 20% discount ➽ https://eletr.co/nr10?utm_content=yt1... ------ In theory, a ding dong doorbell wouldn't work because the sensor would only trigger it once. Now, a buzzer-type doorbell would work, but again, thinking in theory, because it's constantly triggered when energized, lol. But in practice, will it work or not? First, take a look at our diagram. We have the single-pole circuit breaker, an external sensor, and the buzzer-type doorbell. The 127V phase comes from the circuit breaker and connects to the sensor's red terminal. The neutral wire on the blue cable comes directly to the blue terminal and then branches off to one pole of the buzzer. Finally, the black cable return comes from the sensor's black terminal and connects directly to the other pole of the buzzer—it's that simple. We chose to use this sensor model here because it allows for time adjustments from 1 second and also from 1 to 8 minutes. BUT BE CAREFUL, since it's a doorbell, I recommend setting the sensor time to a shorter setting: 1 second if simply announcing someone's presence, or 1 minute if an alarm is triggered. We ran both tests. Anything longer than 1 minute risks burning the buzzer, as it's not a siren; it gets very hot. But let's take a look at the practical assembly and testing. Here's the circuit breaker, just below it, powering the sensor and next to it, powering the doorbell. All the cables are connected as explained in the diagram. The first test will last 1 second. We turn on the circuit breaker, and if there's movement, the buzzer will sound. Now let's turn off the circuit breaker, set the timer to 1 minute, and run the test again, counting the time it's been on. (Timer speeding up the video for 1 minute of operation.) Now we've seen that it sounded the buzzer for 1 minute, behaving like a low-cost home alarm. It's worth remembering that we ran this experiment with equipment we have here in the studio. However, you can also use a 127V siren instead of the buzzer. On average, sirens have a range of 100 to 300 meters in open areas. Their current is less than 1A, so they can be connected directly to the sensor. It's up to your creativity, lol. Now, if you are looking for a more suitable alarm solution, don't try to follow trends, buy a control panel from a good brand, and install it according to the manual. After all, these devices are for specific use, have more protection for the components and also offer more security to the user.