It provides for the operation of devices without the intervention of the physical owner, i.e. works according to a given program or is controlled remotely.
Those who cannot yet afford a Smart Home can purchase GSM sockets that control the power supply to electrical appliances via a mobile phone. Sometimes they also use the name SMS socket.
Design and principle of operation of a GSM socket
Inside the device there is an electronic board with a built-in GSM module, which carries out control. Directly on the body there is a plug (input) and a Euro socket (output).
Indicators and buttons are also located here (the number depends on the device model). The board inside the device contains a SIM card slot and battery holders.
After you have bought a GSM socket, insert the SIM card of your mobile operator into it, and then connect it to a 220 V power supply. Next, you will need to connect an electrical appliance that you plan to remotely control to it.
If SMS commands from a mobile phone will be used for control, be sure to enter the number of the installed SIM card in the electronic phone book. For convenience, it is better to create SMS templates with basic commands to save your time and not have to retype them every time.
You can control the device in other ways. There is an option to work through a smartphone application. If it supports this function, then the instruction manual or on the box indicates the website address for downloading the latest version of the program. After installing the application, proceed to setting up the device.
In addition, devices are produced that can be controlled via an Internet service. Thus, for popular devices of the SENSEIT brand, such a service is called Smart Plug 2.0. You can register in your personal account using the link apps.senseit.ru.
You get access to online control of all installed sockets with one click from any place where there is Internet. At the same time, all events related to remotely controlled devices for the last year will be saved in your personal account.
NTONPOWER XGG86-EU
The overhead type of smart socket has an input voltage of 100-250 V, and a maximum current of 10 A. The socket is controlled using a remote control, where you can turn on and off household appliances. The socket itself is equipped with protection against children's fingers, and the remote control is convenient and easy to control.
Pros:
- Control via remote control;
- The socket is protected from children's fingers;
- Easy and simple programming.
Types of GSM sockets
There are different types of this equipment available on the market. So, you can choose a standard socket with one connector or a surge protector that supports the connection of several electrical appliances.
Standard network extension cord. Has several exits. To get started, you will need a SIM card with a positive balance, on which the PIN code request function is first disabled.
After the SIM card is inserted into the device for verification, make a call or send a message to it.
This type is used at ambient temperatures down to minus 20 degrees. The advantage of such models is stable support for the GSM network.
GSM socket with one output. Additionally, gas leak indicators, door opening sensors, fire safety sensors, etc. are sold. Together with a smart socket, they form a complete security system.
By setting it in such a way that the lights turn on in the rooms at certain intervals, the appearance of people is created.
Or, when the doors are opened, the alarm or lighting of the local area turns on.
Top 7 best smart plugs 2019
Next, we will consider what is remarkable about the most profitable devices priced from 2,000 to 4,000 rubles.
DiPlug 160M
Inexpensive Wi-FI model with electricity consumption metering function and support for Google and Amazon smart speakers. Designed for a current of 16 A, which is enough to simultaneously control several devices. The main advantage is support for multiple work scenarios. This is possible thanks to the presence of light, motion and temperature sensors. After connecting to a smartphone, you can create a scenario so that the air conditioner turns on only when the air temperature exceeds +24°C and turns off when the level reaches +20°C. For those who are especially economical, there will be an accurate meter for electricity consumption for a certain period of time. For this amount of money an excellent purchase.
Average price: 2,200 ₽.
Reviews: positive, many owners noted the ease of setting up all parameters of the device.
Pros:
- functionality;
- price.
Minuses:
- there is no option for mass configuration of multiple outlets;
- may block access to an adjacent socket in a paired outlet.
NooLite SRF-1-3000
The model is an integral part of the nooLite-F and nooLite smart home systems. It first connects to the central console of this system, and it can already be controlled using a smartphone. The outlet itself can remotely turn off/on connected devices with a total power of up to 3 kW. The product stands out for its flexible configuration. You can add up to 32 action scenarios to it. The socket can be controlled from several remote controls. There is a built-in battery to save settings during a power outage.
Average price: 2,400 ₽.
Reviews: positive.
Pros:
- flexibility of customization;
- built-in battery.
Minuses:
- makes sense only within the framework of a smart home system from the manufacturer;
- price.
Enaut EN-112T
A “smart” outlet specially designed to maintain a certain temperature in the room. It is a stand-alone thermostat, so it does not require a Wi-Fi connection. All settings are set using buttons on the socket body. The user is only required to set the temperature range that should be in the room. Then the device will turn on/off the heater or air conditioner using a thermostat. This is a simple way to solve a common problem, which is characterized by increased reliability when compared to the situation when a similar action is performed by a smart plug with Wi-Fi and a temperature sensor.
Average price: 2,350 ₽.
Reviews: positive.
Pros:
- solves one problem well;
- designed to connect equipment with a power of up to 4 kW.
Minuses:
- price;
- large dimensions.
D02-TE
Socket with thermostat. Keeps the room temperature at the same level. To do this, information from the thermostat is transmitted to the control unit every 10 seconds. The user presets the minimum and maximum permissible temperatures. Based on these rules, the automation turns on/off the electricity supply to the heater, air conditioner or other climate control equipment at the right time. The desired temperature is adjusted in the range from + 5 to + 49°C with an accuracy of 0.5°C.
Average price: 2,250 ₽.
Reviews: positive.
Pros:
- solves one problem perfectly;
- setup takes a few seconds.
Minuses:
- price;
- sold in few places.
Sonoff Smart Socket S20
Affordable model with basic functionality. Connects to your home Wi-Fi network and, after integration with your phone, can be controlled through a special application. It can also be used to assign shared access to control the device by several people. When used with Amazon smart speakers, voice control is available. The model is designed for maximum power up to 2 kW. This is the best option for this price.
Average price: 1,300 ₽.
Reviews: positive.
Pros:
- good functionality;
- price.
Minuses:
- only up to 10 A;
- large.
SC1-GSM-L
GSM socket with a temperature sensor, through which you can power devices with a power of up to 2.2 kW. Supplied with SIM card. Management is carried out using SMS or calls. The possibility of unauthorized access is eliminated thanks to the presence of a six-character password, which must be entered before entering the settings. Control is possible with physical access to the device - for this there are buttons on the case. The smart socket is equipped with a thermostat, so it is possible to automatically maintain the set temperature in the room. If the power goes out, the outlet will send an SMS message to the specified number.
Average price: 3,000 ₽.
Reviews: positive.
Pros:
- reliability of the connection channel used;
- presence of a thermostat and built-in battery.
Minuses:
- outdated design;
- price.
Kvadro (SC3-GSM)
GSM socket with 4 plugs with a total amperage of 16 A (10 A per socket). Controlled using SMS commands or voice calls. To do this, you need to insert a SIM card into the device (only Megafon is supported), pair it with your phone and come up with a password. For reliable signal reception, the outlet is equipped with an external antenna. The device is ideal for cottages and villages. It is only possible to turn on/off the electricity supply.
Average price: 3,900 ₽.
Reviews: positive.
Pros:
- Suitable for controlling four devices;
- presence of an external antenna.
Minuses:
- price;
- sold in few places.
Functions
This GSM device remotely controls electrical appliances, but in addition to this, it performs a number of useful functions.
Purpose of a smart socket:
- Air temperature control using a temperature sensor. Thanks to this function, you can prepare in advance for arriving at a country house after a long absence. Adjusting the temperature in an apartment or office depending on the weather outside.
- Informing when the set temperature has been reached, emergency notification about the state of the power supply or a sudden increase or decrease in temperature. This function allows you to call emergency services in case of unforeseen situations, avoiding negative consequences.
- Setting up the operation of electrical appliances according to a given mode. For example, turning on the electric kettle 10-15 minutes before coming home from work.
What to look for when choosing
There are some rules that must be followed while purchasing the device. You don’t want to regret the purchase and waste your money, do you? Then read the information below.
- Model type. Today we can see 2 types of such a device: overhead, plugged into an outlet, and built-in, mounted on the wall. Outwardly it is no different, but depending on the purpose it can be useful in different ways.
- Control method. Today there are 4 of them. Radio-controlled with a remote control, works at a distance of up to 30 m. SMS control, Internet and timer work from different points of the world, 1000 km from home.
- Functional. The more additional functions a device has, the easier and better it is for you. For example, monitoring power consumption, sending notifications about operational failures, having USB ports for charging mobile phones, etc.
How to use
For proper operation, only GSM SIM cards are installed in the devices. Before installing the card, check whether the SIM card is active.
When using, be sure to maintain low humidity in the room. Metal objects are not allowed near the installation site, as this degrades signal reception by 2-3 times.
You cannot connect equipment that has a power of more than 3.5 kW. The voltage in the electrical network should be 220 V. When connecting to electrical appliances with a power of more than 1500 W, grounding is required.
It is prohibited to install such sockets in the following places:
- hospitals, hospitals, as well as premises where medical equipment is installed;
- in areas where the use of mobile phones is prohibited;
- in rooms where explosive substances are stored.
The device responds to commands sent only from several numbers that are stored in its memory. This restriction ensures that only the necessary subscribers receive information and excludes unauthorized access.
At the end of its service life, the device is disposed of as solid household waste.
A weak GSM network signal at the place of use leads to limited functionality of the outlet. Before use, make sure that the installation is in an area with a stable signal.
When purchasing a GSM socket, pay attention to the following characteristics:
- Battery capacity. As a rule, most models are equipped with a lithium-ion battery, which is designed for uninterrupted operation for 12 hours. If there is a power outage, the battery will prevent the device from turning off.
- The number of phone numbers to which messages are sent. There are devices on the market that support one and two SIM cards. The second option is more convenient and reliable.
- Rated load power per channel. The optimal power is considered to be at least 2 kW.
- Number of switched channels. The more there are, the better for the user. The number of devices available for control directly depends on the number of channels.
- Availability of additional functions. Hints, remote reboot, voice control, electronic indicators, etc. make using the outlet much more comfortable.
Operating principle of a GSM controlled device
When a SIM card is installed in the gsm device, the outlet must be connected to the electrical network. You can install any device that will be controlled in it.
It is important to ensure that the electrical outlet is designed for the power of the connected equipment.
If control will be carried out via SMS, you should write the number in the phone book and create a message template with commands. When working through the application, you need to install the appropriate program on your smartphone. A link to it should be in the user manual or written on the box. After installing the program, you can start setting up.
Devices with Wi-Fi module
The model with a Wi-Fi module provides the most extensive capabilities to remotely control electrical appliances or analyze energy use statistics.
Such a device can both connect to a router and work with a variety of cloud services offered by the manufacturer.
Today, companies such as MTS, Megafon, Apple are constantly expanding the possibilities of connecting smart relay sockets to centralized home automation systems.
Smart Wi-Fi Smart Plug
A smart socket with a temperature sensor, if it has a Wi-Fi transmitter, becomes a multifunctional device.
In addition to its own options and settings, the product can act as a thermostat. By integrating into smart home systems, it can replace several devices.
Temperature control can also be used in non-residential premises. For example, by installing a smart device with a thermometer in a greenhouse, you can quickly respond to changes in microclimate indicators, including by automatically turning on heating or ventilation devices.
Malfunctions
The power indicator does not light, the beep sounds repeatedly - there is no external power. In this case, the device control automatically switches to manual mode. Check that there is power supply.
Frequent blinking of the GSM network indicator for a long time , or the absence of a signal from this indicator indicates that a SIM card is not inserted into the device or the network is not found. Check whether you have a SIM card and whether the PIN code request function is disabled on it.
GSM-Socket Telemetrics T4 in profile and front view
The device is supplied in a case made of thick, high-quality cardboard and with good printing.
The outlet itself pleased me with its small dimensions, high-quality plastic, good assembly and pleasant design, which you don’t expect in this kind of device.
Also included in the kit, in addition to the instructions, is a temperature sensor that connects directly to T4. Not all such devices have such a sensor, but Telemetrics decided not to skimp, and it has a positive effect on functionality.
On the left side there is a slot for a full-size SIM card, on the right there is a hardware control button (turn on the load, reset settings), a 3.5 mm connector for the included temperature sensor and a mini-USB service port for updating the device firmware.
As you can see, everything is simple and concise. But the most interesting thing is that the device is just as simple and concise in setup and operation.
Manufacturers and models of GSM sockets
Brainy Electronics Company
Manufacturer of protective devices for electrical appliances, time relays for lighting, thermostats and floor sensors, devices for remote control, devices with GSM control.
| GSM socket 1x16s | GSM socket 5×5 | GSM socket 2×10 |
| Max load | ||
| 3.5 kW | 1 kW | 2 kW |
| Number of channels | ||
| 1 | 5 | 2 |
| Thermostat | ||
| Yes | Yes | Yes |
| Power consumption | ||
| 2 W | 2 W | 2 W |
| Access to SIM card holder | ||
| interior | external | external |
GSM socket 1*16S . The temperature controller is equipped with two operating modes - cooling and heating. The temperature can be adjusted in the range from minus 50 to plus 90 degrees. Dimensions 57*70*85 mm. The only drawback is that it only supports one channel, so you can control only one electrical appliance using this outlet. Manufacturer's warranty – 12 months.
GSM socket 5*5. Management occurs not only through messages, but also calls. Sends notifications with information about power outages and connections. Works with five channels simultaneously and is equipped with a built-in antenna. The kit includes a DS18B20 temperature sensor. Compact dimensions: 57*70*85 cm. Manufacturer's warranty – 2 years.
GSM socket 2*10. Receives commands via calls and SMS messages. Equipped with a built-in antenna and an external connection is available. Works with two channels simultaneously. The kit includes a temperature sensor. Compact dimensions: 57*70*85. The factory warranty for the model is 2 years.
Models are equipped with a temperature regulator.
SENSEIT
The company is a developer of mobile phones, GPS devices and Smart Home equipment (GSM and Wi-Fi sockets).
| SENSEIT GS1 | Senseit GS2 S | SENSEIT GS2 M |
| Max load | ||
| 3 kW | 3.5 kW | 3.5 kW |
| Supported range | ||
| GSM 900/1800 MHz | SM/GPRS 900/1800 MHz 433 MHz FSK | GSM/GPRS 900/1800 MHz, 433 MHz FSK |
| temperature sensor | ||
| Yes | Yes | Yes |
| Operating temperature range | ||
| from – 10 to + 50 | from – 10 to + 50 | from – 10 to + 50 |
| Connecting additional outlets | ||
| Yes | Yes | Yes |
SENSEIT GS1 makes remote on/off and timer control available. Does not require special installation, plugs into a standard power outlet. It is possible to configure switching modes based on ambient temperature values.
Management occurs using voice calls, SMS messages and a special application for smartphones on the Android platform. When controlled using SMS commands and calls, it is possible to receive response notifications about the status of command execution.
There is a function for sending messages about a sudden change in temperature (activation of a smoke detector, water and frost sensors). When connecting a heater, climate control equipment is possible. Control is possible only from 5 phone numbers. The first is the main one with maximum functionality. The remaining numbers can only send commands to turn the power off or on.
Senseit GS2 is a master socket with up to 10 additional sockets available. One SIM card serves all sockets connected to it. Use is only possible indoors. The power is 3.5 kW, so you can connect a pump, boiler and other equipment that operates with high voltage to the device.
Yandex YNDX-0007W
The first heroine of our TOP is the Yandex YNDX-0007W smart socket.
It is available in white and black body colors, so you can choose a model that will best fit into the interior of your home. It looks like a regular socket. There is only one button on its body. Just press it to stop or resume the flow of electricity through the outlet. It is also worth noting that the button is supplemented with a light indication that clearly demonstrates the operating status of the device. Also, using this button you can reset the settings.
It will be possible to connect an extension cord to such an outlet and thereby control the operation of several electrical appliances at once. Users can control such an outlet through the Yandex application or using the Alice voice assistant. It will be enough to come up with a name for the outlet, save it in the settings and then say: “Alice, turn it on!” or “Alice, turn it off!” Support for voice commands greatly facilitates user interaction with such an outlet. You don’t need to go into the room where the device is installed; all you need to do is say the required command via your smartphone or Yandex.Station, if you have one. And even if you left home and left electrical appliances on, you can remotely stop the supply of electricity to them.
- Rated voltage: 230 V.
- Nominal frequency 50 Hz.
- Maximum current: 16 A.
- Maximum power: 3680 W.
- Protection class: 2.
- Wi-Fi 802.11b/g/n (2.4 GHz).
- WPA or WPA2.
- Dimensions: 55 × 55 × 80 mm.
- Weight: 200 g.
Photo
What can Telemetrics T4 do?
In short, a GSM socket is capable of turning on and off the power supply to any connected device, based on SMS commands and specified conditions , including:
- Ambient temperature (turn on/off when the specified limit parameters are reached).
- Timer (turn on/off after a certain amount of time within 720 minutes).
- Schedule (turn on/off at strictly defined time intervals).
In what cases can this be useful ? In fact, there are a lot of options, it all depends on the needs of each specific user. Here are some typical examples:
- There is a router that freezes from time to time and requires a reboot. It is located far away, for example, in the apartment of parents who do not understand anything about modern technology. Or in the entrance of a house where a small private Network is set up. “Telemetrics T4” will allow you to reboot your device wherever you are. If only there was an opportunity to send SMS.
- The country house has an electric heater , which in the bitter cold of winter you can turn on in advance, shortly before your arrival. The company will immediately find itself in a warm room, ready to receive guests, party and have fun.
- Automatic room temperature control . The presence of a complete temperature sensor and the ability to set limit values for the GSM socket allow you to maintain the desired microclimate in the room. For example, you can automatically turn on the heater when the temperature reaches 18°C and turn it off at 24°C. Or vice versa, if we are talking about cooling the room with an air conditioner.
Additional features include SMS notifications in cases:
- loss/appearance of external voltage;
- monitoring the temperature, if the alert option is activated when it goes beyond the designated limits;
- activated alert option for sudden temperature changes (for example, a change of 10°C in 30 minutes).
Technical features
The device is designed for fairly harsh operating conditions. For example, you can connect a pair of heaters with a total load of 3.5 kW . Although, as practice shows, Telemetrics T4 can withstand two such devices with a peak load of up to 4 kW , that is, the GSM socket is made with a reserve. But it is better not to go beyond the limit values.
Characteristics of Telemetrics T4»:
- Power parameters - 220 V , 50 Hz .
- Permissible load current - 16 A.
- Permissible load at 220 V - 3.5 kW .
- Operating temperature – from –10°C to +50°C .
- Temperature measurement range - from –10°C to +50°C .
- Relative humidity: 10–90% , non-condensing.
- Communication protocols - GSM PHASE 2/2+ (including data transfer).
- Data interface - GSM SIM 1.8V/3.0V .
- Operating range - GSM 850/900/1800/1900 MHz .
- The battery life is about 2 minutes (enough to transmit information about a power loss).
It is also worth paying attention to the high-quality filling, namely the electromagnetic relay JQX-115F , which belongs to the professional series, and the nano Force E1A supercapacitor , which supports autonomous power supply of the GSM socket for up to two minutes. The latter is necessary to send an SMS message about the loss of 220 V. Although a few seconds are enough for this, even here the Telemetrics specialists played it safe and that’s good. The reserve does not fit the pocket.
What varieties are there?
Manufacturers offer two types of GSM sockets:
With one exit. It can be additionally equipped with a gas leak indicator, a fire safety sensor or an open door warning system. In the latter case, it can be used as a full-fledged security system.
Network extension cord. In appearance it resembles a regular surge protector. It differs from it in the presence of a connector for connecting a SIM card and a power management system through it.
According to the installation method, they are divided into:
Invoices. They are an adapter that plugs into a regular outlet. They are most often in demand due to their easy connection and operation. The main advantage is the ability to quickly move the device from one room to another at any time.
Built-in. Installed during finishing work directly into the wall. Before purchasing, you need to carefully consider where and for what purposes the product will be used, as well as what load it will experience.
Look at the photos of gsm sockets to be able to distinguish them.
How to work with Telemetrics T4
The installation and basic configuration of the GSM socket in question is so simple that any user who understands a mobile phone can handle it. That is, this is 99.9% of the public.
The process is described in detail in the official documentation (direct link to PDF, 1 MB, included as paper instructions), so here we will only touch on the main points.
After taking the GSM socket out of the box you need to:
- Install the SIM card (the contact pad must be directed towards the front of the T4, the SIM card must be activated, with the SMS function connected and without a PIN code).
- Connect the temperature sensor .
- Insert the GSM socket into a 220 V 50 Hz power outlet. (The GSM network indicator will flash slowly for 15 seconds, then switch to slow flashing mode and a long beep will sound.)
- Insert the plug of the connected electrical appliance .
- Add main control mobile number:
- #0# to the number of the SIM card installed in the GSM socket (of course, from your personal number from which you plan to control the socket);
- if necessary, add additional numbers (up to four) using the command #06#AdditionalNumber# (the number is specified in the format 79919999999 ; additional numbers receive notifications, plus you can turn the socket on and off, but you cannot configure it).
That's it, the device is ready for setup and operation.
Configuration is carried out using SMS commands, or through proprietary applications:
- Telemetrics for iOS []
- Telemetrics for Android []
In the latter case, the same SMS commands are used, but they are generated by the applications themselves, while the user works with a convenient graphical interface. By the way, the programs are universal and support all GSM devices from Telemetrics. That is, it turns out to be a kind of hub for managing a “smart home”, formed on the basis of the products of this company.
