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We have a variety of designs for Intercom System With Tuya, different sizes, different keys, etc., you can refer to our pictures,
We have been focusing on independent research and development of intercom system with tuya
since 2011. We have professional reach and devolve team to serve you, and we can provide you with professional products and services, If you need more information about our factory or intercom system, please do not hesitate to contact us, we are very honored to share catalog with you.
Smart doorphone with tuya is an intercom system that can be connected to a mobile phone. The system adopts a unified TCP/IP networking architecture to connect all-digital video intercom, security equipment and elevator linkage system. At the same time, it can be connected to the central management machine. The property community can better manage tenants, improve user experience and property services, etc. They use POE switches to connect multiple indoor units and video door phones, and POE switches supply power to the indoor units. The wiring is very simple and convenient, and the overall cost is low.
Smart doorphone with tuya improves user experience, because users can receive call information, and can monitor Video Door Phone at any time through tuya application, even if users are in an office, picnic or travel, they can immediately receive call information from visitors , and talk to them, you can also monitor visitors. If it is the user's friend, it can also remotely unlock the visitor on the mobile phone, which is very convenient.
The video doorphone in the picture is the most popular model from our company - MK-AZZJ4C, we have adopted the embedded design, which is very classic and beautiful. It is also an Android system, which can support simultaneous connection of multiple indoor units and mobile phones to realize remote monitoring, calling and unlocking on the mobile phone. We have also added the function of face recognition and LED fill light, which can clearly monitor and unlock using face recognition even at night. Ideal for multi-apartment, hotel and community applications.
The following are the parameters of MK-AZZJ4C for your reference:
1. 4.3 inch 720 HD display TCP/IP Intercom system
2. Calling, intercom, unlocking, monitoring
3. High quality aluminium alloy frosted panel + high-end glass lens + sensor buttons
4. Digital camera, stable and clear image shooting
5. Night vision and bright light compensation function
6. Full duplex voice intercom, comparable to ordinary telephone intercom
7. Android system ,ARM CPU, TUYA App (support Android and IOS system)
8. LPDDR3 1 GB memory, standard EMMC 8 GB storage expandable
9. RJ45 standard ethernet interface all-digital design
10. Low power consumption technology solution, saving energy and long life span
11. Dimension:400*140*51(mm)
12. Install method : Wall/flush install (390*130*46 mm)
13. Image/video advertising playback (advertising can be customized)
14. Door opening:IC/ID card/ password/ face recognition/ mobile phone
Our company has been focusing on intercom system for 11 years, we can provide you with different systems, like IP, 2 wire and 4 wire system, and we are also OEM & ODM factory, support to customize your brand and function, Thank you very much for your interest in our products, if you need more detailed information, please feel free to contact me.
Smart Doorphone With Tuya,Tuya Smart Doorbell,Tuya Video Doorbell,Tuya Smart Video Doorbell Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com
introduction
With the use of nanoparticles in consumer products more widely, in contact with the human body and the migration of nano-particles more and more attention, and thus poses a problem: nanoparticles in consumer products will be migrated to the human body do? People mainly through physical contact interaction to occur with these products, it is necessary to understand how the body is in contact with the nanoparticles to achieve human migration through.
This paper discusses the nanoparticles on the surface of nano-materials on how to migrate to the rag, and focused on several major features of nanoparticles released: the total mass concentration and particle number concentration and particle size distribution. We examined the silver nanoparticles that are widely used for antibacterial properties, and the migration of copper oxide nanoparticles on the surface of the paint coating . A detailed description of the test methods can be found in the relevant literature 1 , which is only an overview here.
experiment
Sample and sample preparation
In this study, we tested two different consumer products: a silver-containing silicone keyboard membrane and a wooden block coated with a copper oxide coating (Table 1 ). To evaluate the transport of nanoparticles on these products, we used two rags and synthetic sweat 2 . Different cloth is used to reduce the background to maximize the value of at least silver and copper: silver background value smaller wipes for detecting nano silver particles, copper and another small cloth is detected background value copper nanoparticles Better choice.
In the nanoparticle migration study, a method of wiping by a 5 x 5 cm rag soaked with 0.5 ml of artificial sweat was used, as described in the NIOSH Guide Wipe Element: Method 9102 . 3 To ensure consistency, wipe with a specific overlapping “ S †path and the sample is placed on the balance to ensure that each sample is equally stressed. After the wiping operation is completed, once the cloth placed into filled with ultra-sonicated for 10 minutes for 20 ml of deionized water in a plastic container; then immediately single particles ICP-MS (SP-ICP- MS) method The suspension was analyzed . For the wood block, it was wiped before and after the simulated wear . The block was manually sanded three times with 180 mesh sandpaper in the same manner as the wipe to obtain a simulated wear effect.
The nanoparticles recovered and extracted on the rag were examined for four tests as described in Table 2 . After addition of artificial sweat and / or nanoparticles, the sample was immersed in 20 ml of deionized water, in an ice bath and sonicated for 10 min; then immediately analyzed by SP-ICP-MS. These tests used 30 nm silver nanoparticles ( supplied by Swedish Cline ) and 30-50 nm copper oxide nanoparticles ( provided by PlasmaChem , Germany )
Instrument conditions and analysis conditions
All samples were analyzed using a PerkinElmer NexION® ICP-MS single grain mode (SP-ICP-MS) for the next, and the use of nanotechnology applications Syngistix ™ software for data analysis and processing modules combined. Conditions of the test used as shown in Table 3. Transmission efficiency of the system is calculated by the 60nm gold particles, while sample uptake rate was measured in accordance with a given time difference between the mass of water per day lift.