Tuya 20A Smart WiFi Plug – Remote immersion heater control and real-time energy monitoring
An immersion heater left running all day, a space heater plugged in unattended, a deep fryer left live — high-drain appliances quietly run up your electricity bills without you knowing the exact cost. The 20A Smart WiFi Plug with energy monitoring puts you back in the driving seat: turn appliances on, switch them off, and schedule them straight from your phone, wherever you are. It handles up to 4400W — well beyond the limits of standard 16A smart plugs.
Note: This smart plug operates exclusively on 2.4 GHz WiFi networks. Please check that your broadband router is set up on this frequency before installation.
Why choose this model? (Key benefits):
- True 20A / 4400W capacity — easily handles immersion heaters, radiators, convectors, and kitchen appliances without overloading, right where standard 16A sockets give up.
- Real-time energy monitoring — view voltage, current, instantaneous wattage, and total kWh directly in the app to find out exactly which appliance is hiking up your utility bills.
- Hands-free voice control — works seamlessly with Amazon Alexa and Google Home; just say the word and your immersion heater turns on or off.
- Schedules + countdown timers — set your immersion to kick in at 6:00 every morning or your fryer to shut off automatically after 30 minutes, without constantly watching the clock.
- Power outage memory — following any power cut, the plug automatically restores its last set state, ensuring your schedules aren’t lost.
- Group control and family sharing — manage all your Tuya plugs from a single screen and grant access to your partner or family members without handing out your account password.
- Flame-retardant casing, CE and RoHS certified — built from materials that withstand thermal overloads and comply with European electrical safety standards.
Details and Performance
Where 10A or 16A smart sockets trip out from overload, this 20A WiFi smart plug keeps running reliably. The built-in Tuya chipset ensures a fast, stable connection to your 2.4 GHz WiFi network via the Tuya Smart or Smart Life apps — available free on iOS and Android.
The energy monitoring function doesn’t just show whether the appliance is on; it displays real-time voltage (V), current draw (A), instantaneous power (W), and total energy consumed (kWh). Armed with these insights, you can quickly spot power-hungry appliances and tweak your routine before your next bill arrives. Weekly schedules and countdown timers handle the automation, letting your daily routines run effortlessly in the background.
The flame-retardant casing and built-in overload protection guarantee safe operation even during prolonged maximum loads — precisely what you need when leaving an immersion heater running overnight.
| Parameter | Value / Detail |
|---|---|
| Rated current | 20A |
| Maximum power | 4400W |
| Supply voltage | AC 220–240V, 50/60Hz |
| WiFi frequency | 2.4 GHz (802.11 b/g/n) |
| Compatible apps | Tuya Smart, Smart Life |
| Voice control | Amazon Alexa, Google Home |
| Smart features | Scheduling, Countdown, Energy monitoring, Group control, Family sharing |
| Power cut memory | Yes – auto-reverts to previous state |
| Casing material | Flame-retardant, overload protection |
| Certifications | CE, RoHS |
| Plug type | Schuko (European standard) |
Setup and Usage Instructions
- Download the Tuya Smart or Smart Life app from the App Store or Google Play and set up a free account.
- Plug the device into a standard 220V wall socket and make sure your 2.4 GHz WiFi network is active on your router.
- In the app, tap the + button (Add Device) and select the Socket / Switch category.
- Follow the pairing prompts — the plug’s LED indicator will flash rapidly when it enters configuration mode (EZ or AP pairing).
- Once connected, open the device settings to configure schedules, countdown timers, and turn on energy monitoring.
- To set up voice control, link your Tuya / Smart Life account to Amazon Alexa (via Skills) or Google Home (Works with Google).
Package Contents
- 1x 20A Smart WiFi Plug with energy monitoring
Frequently Asked Questions
Does it work on 5 GHz WiFi networks?
No. This plug is exclusively compatible with 2.4 GHz WiFi. If your router broadcasts a single combined network name for both bands, connect to the 2.4 GHz frequency or temporarily disable band steering before setting up.
Can I safely plug in a 3000W electric immersion heater?
Yes. The socket supports up to 20A and 4400W, so a 3000W immersion heater sits comfortably within safe operating limits. It works just as well with radiators, convectors, and electric hobs.
What data does the energy monitor show?
You can view real-time voltage (V), current (A), instantaneous power (W), and total energy used (kWh) straight from the Tuya Smart or Smart Life app.
What happens if there is a power cut?
The plug features a power outage memory function. When power returns, it automatically goes back to its last known state (on or off) with no manual intervention needed.
Is it compatible with Apple HomeKit?
Not natively. The plug works out of the box with Amazon Alexa and Google Home. HomeKit integration is possible via third-party software like Homebridge, but requires extra configuration and is not officially supported by the manufacturer.














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