-
Anonymous users2024-01-241. Yes. 2. You need to be not afraid of noise, but two walkie-talkies sound at the same time. 3. You need to spend your own money to buy equipment, and you also need to spend your own money to ask the master to install it.
I hope my answer can help you.
-
Anonymous users2024-01-23It can be, but there is one point in particular, that is, it is necessary to have the same model, the same frequency point of the walkie-talkie, if you want to have it, no problem.
-
Anonymous users2024-01-22Yes, ask the master of the installation to pick it up more.
Dozens of them really can't be bought, depending on the brand consistency, more than 100 is still possible.
Building security door intercom.
The building walkie-talkie is a strobe and intercom control device installed at the entrance of the building security door. The host is generally installed on or on the wall near the anti-theft door at the entrance of each unit residence, and the host at the door comprises a panel, a bottom box, an operation part, an audio part, a video part, and a control part. >>>More
Is the power supply not powerful, there are many building intercoms that cannot supply power to the electric lock, and you need to buy a power supply to supply power to the electric lock.
The intercom of the security door is broken, this unit is not ringing at my house, how to repair it, who will be a direct button type, the entrance line is 4, N red, out yellow, GND green, Ring black. >>>More
About 20 yuan a month is enough, the building intercom is used by the transformer step-down rectification DC 12V electricity, according to the mains AC full load 20W, of course, the power consumption is very low when not calling and unlocking [you can look at the wattage of the power supply to close the label] 50 hours of electricity, so that there is a number of months. >>>More