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tongou was established in 1993 and is the brand of Changyou Technology.
We position ourselves as providers of intelligent product solutions for high and low voltage electrical systems, taking on solving customers’ pressures and challenges as our responsibility and creating value for them.
We utilize intelligent products to serve global customers, making life smarter and more convenient to benefit your life.


WiFi Smart Switch
ZigBee Smart Switch
New Series
Product Dimensions : 3.54 x 0.79 x 3.15 inches; 3.84 ounces
Item model number : 20A Wi-Fi Power Monitoring
Date First Available : June 1, 2024
Manufacturer : Changyou Technology (Zhejiang) Co., Ltd.
ASIN : B0D5V72JK4
Best Sellers Rank: #55,730 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #180 in Electrical Outlet Switches
Customer Reviews: 4.8 4.8 out of 5 stars (123) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Note: SY1 is a switch without any protection such as overcurrent or leakage. Complies with IEC 60947 standard. Rated Operating Voltage: AC 90-240V, 50/60Hz;Wireless Type: Wi-Fi 2.4GHz; Poles Description:1P+N, N pole cannot be cut off
Applicable Current Scenarios: AC1, applied to circuits controlling heaters, incandescent lamps, ovens, and other purely resistive loads; Max Wiring Capacity: Power side: 10 mm²; Load side: 10 mm²
Universal Home DIY Mode: With the SY1 smart switch, it can convert small household appliances from traditional to smart within 10 minutes. With this compact WiFi switch, you can turn devices like table lamps and fans into connected objects
Remote Control via APP: You can control household appliances via the “Smart Life” or “Tuya” APP. There are no restrictions regarding distance and time. The “Smart Life” APP is available for download from the “App Store” and “Google Play”
Power Monitoring (AC Electricity Positive Import): Analyze the real-time power consumption, load current, load voltage, and load power of connected devices, and record historical power consumption (by hour, day, month, and year)
Voice Control: The connected WiFi switch is compatible with voice control from Amazon Alexa and Google Assistant. You can turn devices on or off via voice commands to the SY1. With the SY1 switch, you can free your hands
Multi-timing: The intelligent switch offers schedule/countdown/circulate/astronomical timing mode (sunrise/sunset). The connected universal switch helps you avoid forgetting to turn off appliances. Adjust the working time of appliances as needed to avoid unnecessary energy consumption and achieve energy savings
Easy Installation and Wide Application: You can connect the smart switch to your devices within 10 minutes. Simply press and insert the cables for wiring. Screws can be easily tightened and loosened with a screwdriver
Premium Materials: The smart switch is made of high-quality materials. Copper offers good conductivity, while flame-retardant PA66 material is heat-resistant, effectively enhancing safety during use
12 reviews for DIY 1P+N Smart Wi-Fi Switch, Work with Alexa and Google Assistant for Voice Control, 20A with Energy Monitor, Smart Life/Tuya APP Remote Control, Timer Functions, DIN Rail Mounted,FCC Certified
Add a review
$21.39

JUAN J MADINABEITIA –
Great for 220V appliances.
I bought two of these switches and I am so satisfied by them, I used them in a 220V water heater and a 220V mini split AC. They are very easy to install, you can see the instructions, or find tutorials on youtube. Once installed the functions are great, the 40 gallon water heater didn’t have an on/off switch so this gave me one, the mini split did have an on/off switch but I came up with a surprise, when I started using the power consumption feature on the switch I noticed that the mini split has a 10 whatt vampire power waste when it is turned off, these switch lets me turn it off completely and save that power. The consumption on the water heater is about 13 Kilo Whatt per day on a home of six people, so now I can compare the cost of that power use against the cost of the gas water heater that I had before, but the greatest thing is that I can now program the water heater to turn off in the middle of the night so it doesn’t spend any power at night when nobody is going to use the shower. Anyway, these are great if you have 220V appliances at home.
Paul –
Good product
These work great the tracking is very accurate love how it tells you the amps and watts the app is ok they do lose connection to the app once in a while so u have to reconnect but I hooked it up to 30 amp camper
WZ –
Nice app easy breaker you got my 5💫
Works excellent Easy to connect good app im impressed with the quality
Bubba Bean –
Great for remote application
Retired EE here. Set this breaker up to control a 1/2 hp variable speed whole house fan. Local control and remote wifi control with the App. I use the timer and clock features to turn the fan on and off during the night and day. It is great having the start up amps and power usage available for review and tweaking the speed of the fan. Beaker is in its own dedicated type specific box next to the variable speed controller in the attic. Much better control and wiring solution than a WiFi outlet. Able to keep attic temps below 108 deg on a 100 deg day. Like it enough I plan to get another one for a similar outbuilding fan controller and adding in a temperature control switch for time and temperature operation.
lake life –
Loses wifi connection frequently, but otherwise works great.
Seems to lose it’s wifi connection frequently. Have to keep adding it back. Otherwise works great.
K.Tran –
Good value.
Easy to install and setup with app and Alexa. Works smoothly. Controlling my pool pump 240v, 20A.
One –
excellent
This WiFi breaker is doing an amazing job. I can control the entire120 AC power coming from my inverter in one spot, and at the same time, I can see how much power I’m using daily, monthly, yearly, and even in real time. I’m indeed very satisfied with this product.
Louis –
Good for my pool
Cheap and efficientIt permits to control my pool pump timing
Shanawaz –
low quality, or not acceptable.
Batista Neto –
Tenho um já instalado da mesma marca e funciona muito bem, ainda não instalei esse mas deve funcionar da mesma forma.
Laura –
Estaba super feliz con este switch. Lo instalamos para la pastilla de un boiler eléctrico y lo teníamos automatizado con google home. Después de 8 meses de instalado hubo una variación de voltaje en la casa y dejo de funcionar :C. Aun asi, creo que lo volveré a comprar, nos ayudo mucho a ahorrar en luz
Adriano –
Muito bom