Smart socket, it sounds like it is a tall product, in fact, the so-called smart socket function is very simple, such as charging the phone before going to sleep, smart socket can be set to automatically power off after 2-3 hours, to prevent overcharge In autumn and winter when using electric heating or electric blankets, the smart socket can set multiple sets of opening and closing time, cycle according to the cycle, so do not have to open one night each day; away from home, if the time is too long, you can remote Turn off the electricity in your home or turn on the power to let the home work, save energy and make life easier. The head is very small, using flame-retardant PC material, cylindrical design, diameter 51mm, height 27mm. Both 2-way and 3-way plugs are supported, but simultaneous insertion is not supported because this shipment can only control the power of one plug at a time. The power switch on the socket is also the only control button on the socket. The other keys are almost useless in daily use, because we control it through the mobile phone APP. The input voltage is 100~240V 50/60Hz, the maximum current is 10A, the maximum power is 2200W, the new national standard jack is adopted, the Wi-Fi standard is 802.11 b/g/n, 5G Wi-Fi is not supported. The instructions are very simple. Take out the QR code on the mobile phone and download the APP. The first thing to do is pairing a cell phone with a small K. Plug the small K into the socket and the blue light starts flashing. Then according to the APP's prompts, after entering the current WIFI password, you can complete the pairing with the small K. After the pairing is successful, the small K can be found on the APP's device interface. If the WIFI password is changed, or if the usage environment changes, then the small K needs to be reset and re-paired. Then the physical button is used. Press and hold the button. When the indicator light turns red, it will enter the reset. Mode. Well, the process of pairing is very simple, and it is actually very simple to use. It is simply not necessary to explain in detail. Use the APP to time the small K, set the open time and close time, and the small K can work normally. What is the use of this cargo? In simple terms, you can set a good time and automatically switch off the power after the time expires. For example, when a mobile phone is charged, it usually takes 3-4 hours to fully charge a mobile phone, and we are generally used to charging at night. Continuous charging for seven to eight consecutive hours can easily lead to overcharge of the battery and reduce battery life. Using this smart socket, when charging the mobile phone, “charge protection†is turned on at the App terminal, and the small K takes over management. After the mobile phone battery is full, the power is automatically turned off. If the timing function can be solved through a cheaper timed outlet, then the remote control is "nirvana." I tried it and kept the small K connected to the WiFi. The phone was changed to a data network and I found that I could still switch on the socket freely. This means that remote phones and small Ks are not connected directly, but they are controlled remotely by server agents. This function is suitable for people who have no regular work or life. The regular timing function is too regular, and the remote short-range has more freedom. For example, on the way to work, remote control of small K automatically power, rice cookers start steamed rice, so when home is just cooked rice, you can eat hot rice, save time and effort. You may think that using a smart socket to control the lights is ridiculous. If you have children at home, you will not think so. The child, out of fear of darkness, was required to sleep with a lamp at night when he was sleeping. However, in this way, it was necessary to remember to turn off the lights every day. With it, it was much more convenient, and the time was fixed. Turn off automatically, even if you forget to turn off the lights, you will not waste electricity. After the small K smart socket is set, the power is on, the power off is off, and the setting can only take effect once. If there is a need for a second switch, there is no way. Because the current intensity is limited to 10A and the power is 2200W, most air conditioners and water heaters cannot be used.
Power Meter is a monitoring and testing
instrument which determines the power consumption of a connected
appliance and the cost of the electricity consumed.
Installing the batteries
Install 3.6V rechargeable Battcrics(NI-MH) . The purpose of the batteries is to store the total electricity and mcinory setting.
Resetting
If an abnormal display appears or the
buttons produce no response, the instrument must be reset. To do
this,press the RESET button.
Display Mode
Entire LCD can be displayed for about 1
minute and then it automatically gets into Model. To transfer from one
mode to the other, press the FUNCTION button.
Mode 1: Time/Watt/Cost Display Display
duration(how long) this device connect to power source.LCD on first
line shows 0:00 with first two figures mean minutcs (2 figures will
occur while occur at 10 min) and the rest shows seconds. After 60mins,
it displays 0:00 again with first two numbers meas hour(2 figures will
occur at 10hours) and the rest shows minutes. The rest can be done in
the same manner which means after 24 hours, it will rc-caculatc. LCD on
second line displays current power which ranges in 0.0W~9999W. LCD on
third line displays the current electricity costs which ranges in
0.0cost~9999cost. It will keep on O.OOcost before setting rate without
other figures.
Mode 2: l ime/Cumulative electrical quantity Display Display duration(how long) this device connect to power source.
LCD on first line shows 0:00 with first
two figures mean minutes(2 figures will occur while occur at 10 min) and
the rest shows seconds. After 60mins, it displays 0:0() again with
first two numbers meas hour(2 figures will occur at 10hours)and the rest
shows minutes. The rest can be done in the same manner which means
after 24 hours, it will re-caculate. LCD on second line displays current
cumulative electrical quantity which ranges in 0.000K WH 〜 9999KWII
without other figures. LCD on third line displays''DAY''- "1 "will be
showed on numerical part(thc other three
figures will be showed at carry) which means it has cumulated
electrical quantity for 24hours(one day). The rest can be done in the
same manner untial the maximal cumulative time of 9999 days.
Mode 3: Time/Voltage/Frequency Display
LCD on first line displays the same as Mode 1 dones. LCD on second line
displays current voltage supply (v) which ranges in 0.0V~9999V .LCD on
third line displays current frequency (HZ) which ranges in 0.0HZ~9999HZ
without other figures.
Mode 4: Time/Current/Power Factor Display LCD on first line displays the same as Mode 1 dones.
LCD on second line displays load current
which ranges in 0.0000A~9999A. LCD on third line displays current power
factor which ranges in 0.00PF 〜 1 .OOPF without other figures.
Mode 5:Time/Minimum Power Display LCD on first line displays the same as Mode 1 clones. LCD on second
line displays the miniinum power which ranges in 0.0W~9999W. LCD on
third line displays character of "Lo" without other figures.
Mode 6: I,ime/Maximal Power Display LCD on first line displays the same as Mode 1 dones. LCD on second line
displays the maximal power which ranges in 0.0W~9999W. LCD on third
line displays character of "Hi" without other figures.
Mode 7: Time/Price Display LCD on first line displays the same as Mode 1 dones. LCD on third line
displays the cost which ranges in O.OOCOST/KWH 〜 99.99COST/KWH without
other figures. Power Meter Double Rates, Power Meter Two Rates, Cost Rate Socket, Power Meter Cost Rate, Energy Meter Cost Rate, Cost Socket, Cost Plug NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsockets.com
It sounds beautiful and it doesn't seem difficult to achieve. I have just such a smart socket product on hand and let's take a look.
This smart socket comes from the "controller" company and is called "mini-k". It is packaged in a small plastic box. Through the translucent lid, the appearance of the socket can be clearly seen. 
Looking at the current situation, smart sockets are plainly meant to save electricity and improve the efficiency of electricity use. The functions are relatively simple. In fact, I think about it, this kind of smart socket still has a lot of room for improvement in function. In addition to saving electricity, it can also add electrical protection, voltage regulation, and even lightning protection, short circuit protection, overload protection, and leakage protection. Other functions are not impossible to achieve.
Overload Display: When the power socket connects the load over 3680W, LCD on second line
displays the"O VER LOAD" with booming noise to warn the users,( 1918935, 60470643,
60469303,selectable choice)
Supplemental informations:
1: Except tt OVERLOAD , ' interface, LCD on first line display time in repitition within 24hours.
2: LCD on first line, second line or third
line described in this intruction take section according to two black
lines on LCD screen. Here it added fbr clarified purpose.
3. Mode 7 will directly occur while press down button "cost".
4. [UP"&''Down" are in no function under un-setting mode.
Backlight Mode:
Connect to AC power,backlight im mediately light,if not press any button,backlight will went off in 15 seconds.
When press any of the buttonsbacklight
start light again. (Backlight only light when it connect to AC
power,backlight cannot light if use battery)
Setting Mode
1. Electricity price setting
After keeping COST button pressed lasting
more than 3 seconds(LCD on third line display system defaults price, eg
O.OOCOST/KWH ),the rendered content begins moving up and down which
means that the device has entered the setting mode. Then press FUNCTION
button to change selection and press UP/DOWN to set what you want. (On
pressing once, the figure after domical point will increase or decrease
accordingly. On pressing and hold-on, figures after demical point will
increase or decrease slowly in 2 seconds while figures change quickly
when hold-on time exceeds 2 seconds. When hold-on time reaches 10
seconds or more, the figures after demical point will stop while the
figures before demical point begin to increasing or decreasing.) After
that, press FUNCTION fbr swithing, then press [UP'nd "DOWN" button again
to set value which ranges in OO.OOCOST/KWH 〜 99.99COST/KWH. After
setting all above, press COST to return to Mode7 or it will
automatically return to Mode7 without any pressing after setting with data storage.