How to connect the door lock NC NO for TMEZON video intercom doorbell system MZ-IP-V739B 

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What about security ???? It is better to leave the key in the lock, at least it will be cheaper. Whoever puts the cables that open the lock can go through the intercom on the street, just join the two cables and the door opens, if they do not know, it does not matter, join all, and it opens. The intercom can be removed with a just touch. Good work Tmezon !!! Making things easier for thieves !!! I returned it as soon as I received it

Nice video but I'm confused with this two type of door lock - normal open / normal close. Which one do I need to make my system working properly???

Dear sir , I bought Hyundai intercom system , indoor unit has 4 wire and it's going to outdoor unit this is no confusion to connect but outdoor unit has extra 2 wire and same as indoor unit...#how to connect door lock system, please reply me

Se puede utilizar una cerradura de corriente alterna? Could it be used a lock which has 12v AC?

Can it work with every lock or we need buy special lock for this?

I just installed our intercom today and it works great but how can I raise the volume so can hear the person that is outside. I know how to raise the volume of the ringer but not the volume of the mic. I have the white 10 inch touchscreen display.

hello...I would like to know how do I connect the video intercom to the automatic gate, that is, open it through TMEZON. Thanks.

Hello can I connect a electric gate? Thanks

Ho comprato qualche settimana fà questo videocitofono ,sono riuscito a collegarlo , funziona il video_audio e il campanello , ma quando cerco di aprire una elettroserratura del portoncino ( alimentata da un alimentatore a 12 v ca esterno) il videocitofono non riesce ad aprire la serratura elettrica.Con il vecchio videocitofono a 17v il portoncino elettrico riuscivo a farlo aprire, non capisco dove sia il problema , forse l'unità esterna è difettosa.Ho anche provato ad installare un relè ,ma non funziona lo stesso, ho contattato il servizio tmezon ma non rispondono più.

Why is my lock opening the door only for 1 Second? I increased the time on the controller and on the monitor, but that doesn´t make effect. Can anyome help?

Tengo instalada la cerradura NO con corriente alterna de 12V CA, con su respectiva fuente de alimentación de 12v CA . ¿Esta vale para la instalación del videoportero?

He configurado todo tal cual pero en cuanto uno el cable negro del timbre con el cable que va a la cerradura, esta se abre y no puedo cerrar la puerta... Está continuamente abierta, ¿que hago mal?

Hello, I have a very annoying problem with the sound :( The problem is just like you can hear at 5:42 - 6:13, It's so loud like ear deafening! No matter what i tried to do - using the monitor's internal ac power supply / external 12V supply / replacing cables / changing every setting that exist in the software / moving the monitor and doorbell 10+ meters away from each other / playing with the volume dials both in the doorbell and in the monitor - Still this sound doesnt go away... This happens whenever the audio communication line is open (pressing the doorbell ring button, talk button, etc..), It seems like a static electricity interference issue because it is affected by getting close to or touching the monitor and the doorbell.. I noticed that in the videos of almost all manufacturers (in AliExpress and elsewhere) that sell these Tuya wifi intercom doorbells they all have this high pitch noise! So obviously it's not that i have a faulty unit... I don't understand it, how can you use such a device with such a flaw??? Obviously you can't It's just useless and It's almost ironic, The whole purpose of this device is to communicate with sound... Anyway, sorry for the long post, but maybe you know what is the problem here and why does it happen, and how to fix it? Thank you very much in advance!

It's so confusing. I think the NO/NC concepts are reversed. Here's what I got from Chat GPT: For an intercom system that is used to control an electric lock, it's recommended to use a NC (Normally Closed) wiring configuration. In this configuration, when the intercom system is not in use, the electric lock is in a locked state. When a person presses the button on the intercom, it sends a signal to the lock to unlock, causing the NC switch to open, which in turn releases the lock. This configuration provides a secure default state for the lock and ensures that the lock will remain locked even in the event of a power failure or malfunction of the intercom system. In contrast, if a NO (Normally Open) wiring configuration were used, the lock would be in an unlocked state when the intercom is not in use, which may not be as secure.

Open lock Password: 888888