12V PRESSURE button ALARM KIT with 250V 3A relay output
€13.50
Tax included
Access control circuit for an entrance to a room without doors or turnstiles, an apartment, or for many other applications using a compression sensor to detect entry or passage through a door.
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Delivery policy
Express shipments with DHL, BRT, GLS
Return policy
You have 15 days from delivery to return the product if you are not satisfied
Attention, the product is a KIT and therefore you will be given the components to be welded with an electronic soldering iron and everything you need to recreate the device as shown in the image. The KIT includes easy-to-understand illustrated instructions in English.
LEVEL ESPE experience lower middle NEEDED
Assembly and testing by Mectronica STORE is also available by adding 10 PIECES of the KIT assembly service that can be purchased by clicking here on EBAY | MECTRONICA STORE and adding it to the cart together with the KIT to be assembled.
Access control circuit for an entrance to a room without doors or turnstiles, an apartment, or for many other applications using a compression sensor to detect entry or passage through a door. In essence, it is a device equipped with a fairly thin rubber tube, therefore easy to place anywhere, which, when pressed, transmits the pressure variation to a transducer, which in our case is an electret microphone capsule. The operating principle is very simple: the tube is closed at one end and on the other side houses the microphone capsule, which has the sensitive part (the one in front ...) facing inwards; the whole is airtight, in the sense that the capsule must be fixed so as to enter without play, which means that the tube must be chosen with a diameter equal to or slightly smaller than the external one of the component. In rest conditions the air is at (normal) atmospheric pressure and nothing happens; if someone passes on the tube, trampling it with the feet or with the wheels of a trolley or a motor vehicle, the air is compressed and exerts a certain pressure on the sensitive surface of the microphone capsule, which determines a voltage pulse at its ends easily detectable.
Activates a relay when someone or something passes over a rubber tube by pressing it: ideal both as an anti-intrusion alarm to be placed under the entrance mat or carpet, and as a switch to control the opening of electric doors and gates when passing of people or cars. The circuit detects the pressure inside the rubber tube pressed by means of a microphone capsule. The kit comes with all the necessary components, the microphone and two meters of suitable rubber hose.
SPECIFIHCE
- POWER SUPPLY 11-14V DC
- Current 100mA
- Relay output 250V 3A MAX
INCLUDED IN THE PACKAGE
- KIT TO BE AXLE WITH ELECTRONIC COMPONENTS
- MICOROPHONE
- RUBBER HOSE approx. 2m
Assembly instructions in Italian
FT222K
2 Items
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Access control circuit for an entrance to a room without doors or turnstiles, an apartment, or for many other applications using a compression sensor to detect entry or passage through a door.