GSM-socket "Telemetric"

I already am a happy owner of one GSM-socket from the company "Dadget", I wrote about it . During operation, the device proved to be hassle-free, necessary and effective, so it was very nice to increase the park of such devices with a new remote outlet, this time of domestic production. So, "Telemetry T4."

Quality packaging, detailed instructions, nice looking device.

Although, to be honest, the Senseit socket looks more interesting in terms of design - it's not so square, and the green rim is to her face.

However, this, of course, is unprincipled. So, what can such a socket do? To begin with - and for me this is the main function - it has a temperature sensor.

It measures the air temperature in the room in which it is installed (it is also possible to install it outdoors - the permissible modes for temperature / humidity allow, but it is necessary to close the water and the lower limit of measurement is minus ten).

My socket is installed in a country house, and I have the ability to control whether there is a critical drop (pipes freeze!) Or a critical increase (is there a fire?) In temperature. The socket allows you to adjust the temperature range, upon exiting from which it sends an alarm SMS to either side.

In my specific conditions, this is important, but there are a number of functions that may be useful. For example - starting the load by temperature.

Upon reaching the boundaries of the specified range, the outlet can switch from the "Load off" position to the "Load on" position. If the “Heating” mode is set, then on the lower border, if “Cooling” - then on the upper one. All this is configured by submitting intricate SMS commands, so it’s better not to lose the manual with their table ...

Another standalone outlet function is to turn on / off the load on a timer / schedule. Also quite understandable and sometimes in demand. Another thing is that these two tasks can be realized by much cheaper and simpler specialized devices - a thermostat socket and a timer socket, which are now sold in abundance. The advantages of a GSM socket are in telemetry and remote control.

For this, it has a GSM module in which a SIM card is inserted (with contacts to the front part!).

If you are supposed to have plentiful correspondence with the device, then it is better, of course, to choose the same operator as the main phone - usually the intranet SMS is either generally free, or much cheaper than the inter-operator. Unfortunately, no one seems to have any tariffs consisting of one SMS package now (some time ago operators came up with offers tailored specifically for telemetry devices), but the usual mode of operation is unlikely to ruin you - once set up and then triggered reports only.

In addition to remote temperature control (when going out of range or upon request # 07 #), the socket transmits another important information - power failure / appearance. For owners of a country house equipped with a gas boiler, this is critical information - you can understand when the voltage disappeared and when the voltage recovered and assess whether there was enough autonomous power supply for the boiler and pump.

After all, if the boiler is cut down by the discharge of uninterruptible batteries, then we must urgently go and run it back until the pipes freeze. (The eternal winter worry of gasified owners of suburban real estate).

There is also a t-delta / time response - that is, a quick change in temperature in a short time (configurable parameters). This is an indicator of an emergency situation in the room - if the temperature rose quickly, it could mean a fire, and if it fell quickly, then ... well, I don’t know ... for example, did the window break in the wind?

Another useful feature is on / off load on command. This, of course, can find many uses - from remote rebooting the router, to remotely turn on the heaters before leaving for the cottage. This is also a functional demanded for me - while I’m in the city, “barely plus” is maintained in the house so that the pipes don’t freeze, and when I get out of town, I can turn the heating system into “turbo mode” right in the morning by turning on additional electric convectors . Then, upon arrival, the house is already decently warmed up.

There is also a button for manually turning on the load on the device’s case (this is generally the only button).

The USB connector is intended only for flashing, so you do not need to connect anything to it.
SMS management (unlike Senseit sockets that work via the mobile Internet) is not tied to the platform of the mobile device and allows you to use the simplest phone.

This has both advantages and disadvantages. Advantages - there is no dependence on the manufacturer’s support for service servers (if the same Senseit suddenly closes this topic, its outlet will immediately turn into a pumpkin), and, theoretically, SMS works where mobile Internet does not work. Disadvantages - there is no clear visual interface for working with the device.

Although an application for iOS and Android for this outlet exists, it is quite primitive - in fact, it is a shell for sending SMS.

It is convenient if you do not want to memorize commands, but only that. The manufacturer is clearly not enthusiastic about the idea that someone will want to disassemble its products, so the screws in the device are drowned out by long, hard to remove plugs.

However, there are no barriers to an inquiring mind (the author is not responsible for the consequences of the autopsy and does not at all encourage readers to do this).

The internal device pleases with non-Chinese soldering quality and good components - for example, there is an E9A ionistor installed (which is “nano” in it and that “Force” is left outside the brackets), which supports the socket operation for several minutes so that it can transmit a farewell SMS to the host but I don’t give up. ”“ Food is gone. ”

Also, a very good (albeit Chinese) 16-ampere relay JQX – 115F was used to control the load.

But I did not see a replacement fuse for the load - this, as for me, is a minus. The declared load is 3 kW, this is enough for household heating appliances. That, in principle, is all the functionality. The operation of the device can not be called spectacular, so the video is very short:


At its price, the Telemetric socket is a fully functional and well-made device. What I would like to add to it - this is the CRC9 connector for an external antenna - the reception of a GSM signal is not very good for her. The antenna is standard film, glued from the inside to the front panel.

In a country house, she simply turned out to work in some rooms, although she saw the telephone of the same operator as a network. (By the way, a message is provided about a weak level of the GSM signal, but for some reason it has never been sent - apparently, the signal is either sufficient or not immediately available).

Compared to the Senseit socket, the functionality is less (she can also manage Slave devices), but the price is much lower. However, the question is rather theoretical, since there are no Sensei on sale right now.

In the presence of a country house - a thing must mast. It is arranged simply, it works reliably, the range of applications is wide, the homeowner's calm sleep pays off the costs.

And if you write the word GEEKT-TM as a promotional code, you can purchase Telemetrics with a 10% discount on the Dadget page . The promotional code is valid for 14 days from the date of publication of the review.

Pavel Ievlev, Voronezh

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